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Jeju Island

Coordinates: 33°23′N 126°32′E / 33.38°N 126.53°E / 33.38; 126.53
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Not to be confused with Jebudo.
Jeju Island
Native name:
제주도
Nickname: Sammudo, Samdado ("Island of Three Lacks and Three Abundances")
Image of Jeju Island
Satellite image of Jeju Island
Map of Jeju Island
Jeju Island is located in South Korea
Jeju Island
Jeju Island
Geography
LocationEast Asia
Coordinates33°23′N 126°32′E / 33.38°N 126.53°E / 33.38; 126.53
ArchipelagoJeju
Area1,826[1] km2 (705 sq mi)
Length73 km (45.4 mi)
Width31 km (19.3 mi)
Highest elevation1,950 m (6400 ft)
Highest pointHallasan
Administration
South Korea
Special Autonomous ProvinceJeju Special Autonomous Province
Largest settlementJeju City (pop. 501,791)
North Korea (claimed)
ProvinceSouth Chŏlla Province
County-level divisionCheju Island (further divided into 1 ŭp and 12 myŏn)
Demographics
Population678,324 (October, 2022)
Pop. density316/km2 (818/sq mi)
LanguagesJeju, Korean
Ethnic groupsJejuans, Korean
Jeju Island
Hangul
제주도
Hanja
濟州島
Revised RomanizationJejudo
McCune–ReischauerChejudo

Jeju Island (Korean: 제주도; Hanja: 濟州島; IPA: [tɕeːdzudo]) is South Korea's largest island, covering an area of 1,833.2 km2 (707.8 sq mi), which is 1.83 percent of the total area of the country. It is also the most populous island in South Korea; at the end of September 2020, the total resident registration population of Jeju Special Self-Governing Province is 672,948, of which 4,000 reside on outlying islands such as the Chuja Islands and Udo Island. The total area of the Jeju Special Self-Governing Province is 1,849 km.[2]

The island lies in the Korea Strait, south of the Korean Peninsula, and South Jeolla Province. It is located 82.8 km (51.4 mi) off the nearest point on the peninsula.[3] Jeju is the only self-governing province in South Korea, meaning that the province is run by local inhabitants instead of politicians from the mainland.

Jeju Island has an oval shape of 73 km (45 mi) east–west and 31 km (19 mi) north–south, with a gentle slope around Mt. Halla in the center. The length of the main road is 181 km (112 mi) and the coastline is 258 km (160 mi). The northern end of Jeju Island is Kimnyeong Beach, the southern end is Songak Mountain, the western end is Suwolbong, and the eastern end is Seongsan Ilchulbong.

The island was "formed by the eruption of an underwater volcano approximately 2 million years ago".[4] It contains a natural World Heritage Site, the Jeju Volcanic Island and Lava Tubes.[5] Jeju Island has a temperate climate which is moderate; even in winter, the temperature rarely falls below 0 °C (32 °F). Jeju is a popular holiday destination and a sizable portion of the economy relies on tourism and related economic activity.

Etymology

1894 map of Quelpaërt or Tchæ-Tchiou

Historically, the island has been called by many different names including:

Before the Japanese annexation in 1910, the island was usually known as Quelpart (Quelpaërt, Quelpaert) to Europeans;[12] during the occupation it was known by the Japanese name Saishū. The name Quelpart coming from French language is attested in Dutch no later than 1648 and may have denoted the first Dutch ship to spot the island, the quelpaert de Brack around 1642, or rather some visual similarity of the island from some angle to this class of ships (a small dispatch vessel, also called a galiot).

The first European explorers to sight the island, the Portuguese, called it Ilha de Ladrones (Island of Thieves).[13]

The name "Fungma island" appeared in the "Atlas of China" of M. Martini who arrived in China as a missionary in 1655.[14]

The script in the official Jeju logo is colored black, to evoke the basalt of the island, indicating that Jeju's traditions should be preserved and developed. The green symbolizes the natural environment of Mt. Halla and Jeju, blue symbolizes the sea of Jeju, and orange symbolizes the hopeful future and value of Jeju Special Self-Governing Province.[15]

Logo of Jeju Province

History

See also: Tamna § Historical and archaeological records

The earliest known polity on the island was the kingdom of Tamna.[16]

After Mongol invasions of Korea, the Mongol Empire established a base on Jeju Island with its ally, the Goryeo army in (Tamna prefectures) and converted part of the island to a grazing area for the Korean and Mongol cavalry stationed there.[17]

In the beginning of the 15th century, Jeju Island was subjected to the highly centralized rule of the Joseon dynasty. A travel ban was implemented for almost 200 years and many uprisings by Jeju Island residents were suppressed.[18]

Jeju uprising

Main article: Jeju uprising
Suspected communist sympathizers awaiting execution in May 1948 after the Jeju uprising

From 3 April 1948 to May 1949, the South Korean government conducted an anticommunist campaign to suppress an attempted uprising on the island.[19][20] The main cause for the rebellion was the election scheduled for 10 May 1948, designed by the United Nations Temporary Commission on Korea (UNTCOK) to create a new government for all of Korea. The elections were only planned for the south of the country, the half of the peninsula under UNTCOK control. Fearing that the elections would further reinforce division, guerrilla fighters of the Workers' Party of South Korea (WPSK) reacted violently, attacking local police and rightist youth groups stationed on Jeju Island.[20][21]

In 2008, bodies of victims of a massacre were discovered in a mass grave near Jeju International Airport.[22]

Refugees on Jeju Island

Main article: Refugees on Jeju Island

In 2018, 500 refugees fleeing the civil war in Yemen came to Jeju Island, causing unease and racial tensions among the residents of Jeju Island.[23][24][25][26][27][28]

Planned Kim Jong-Un visit

On 11 November 2018, it was announced that preparations were being made for North Korean leader Kim Jong-Un to visit Jeju during his upcoming visit to South Korea.[29] Kim would be transported to Jeju via helicopter.[29] The announcement came in after 200 tonnes of tangerines harvested in Jeju were flown to North Korea as a sign of appreciation for nearly 2 tonnes of North Korean mushrooms Kim gave to South Korea as a gift, following the September 2018 inter-Korean summit.[30][31]

Archaeology

In November 2020, South Korean archeologists announced the discovery of a 900-year-old lost slipway off the coast of Sinchangli. Researchers also discovered bright objects, coins and ceramics belonging to the Northern Song Dynasty.[32]

Geography

Detailed map of Jeju Island

Jeju is a volcanic island, dominated by Hallasan: a volcano 1,950 metres (6,400 ft) high and the highest mountain in South Korea. The island measures approximately 73 kilometres (45 mi) across, east to west, and 41 kilometres (25 mi) from north to south.[33]

The island formed by volcanic eruptions approximately two million years ago, during the Pleistocene epoch.[34] The island consists chiefly of basalt and lava.

An area covering about 12% (224 square kilometres or 86 square miles) of Jejudo is known as Gotjawal Forest.[35] This area remained uncultivated until the 21st century, as its base of 'a'a lava made it difficult to develop for agriculture. Because this forest remained pristine for so long, it has a unique ecology.[36]

The forest is the main source of groundwater and thus the main water source for the half million people of the island, because rainwater penetrates directly into the aquifer through the cracks of the 'a'a lava under the forest. Gotjawal forest is considered an internationally important wetland under the Ramsar Convention by some researchers[37] because it is the habitat of unique species of plants and is the main source of water for the residents, although to date it has not been declared a Ramsar site.[38]

Daepo Jusangjeolli Cliff

Formation

  • About 2 million years ago, the island of Jeju was formed through volcanic activity.[34]
  • About 1.2 million years ago, a magma chamber formed under the sea floor and began to erupt.
  • About 700 thousand years ago, the island had been formed through volcanic activity. Volcanic activity then stopped for approximately 100 thousand years.
  • About 300 thousand years ago, volcanic activity restarted along the coastline.
  • About 100 thousand years ago, volcanic activity formed Halla Mountain.
  • About 25 thousand years ago, lateral eruptions around Halla Mountain left multiple oreum (smaller 'parasitic' cones on the flanks of the primary cone).
  • Volcanic activity stopped and prolonged weathering and erosion helped shape the island.[39]

Climate

Jeju has a humid subtropical climate (Cfa in the Köppen climate classification). Four distinct seasons are experienced on Jeju; winters are cool with moderate rainfall, while summers are hot and humid with very high rainfall.

In January 2016, a cold wave affected the region. Snow and frigid weather forced the cancellation of 1,200 flights on Jejudo, stranding approximately 90,300 passengers.[40]

Climate data for Ildo 1-dong, Jeju City (1991–2020 normals, extremes 1923–present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 23.6
(74.5) 		24.5
(76.1) 		28.1
(82.6) 		30.9
(87.6) 		33.1
(91.6) 		34.5
(94.1) 		37.5
(99.5) 		37.5
(99.5) 		35.1
(95.2) 		32.1
(89.8) 		26.7
(80.1) 		23.3
(73.9) 		37.5
(99.5)
Mean daily maximum °C (°F) 8.6
(47.5) 		9.9
(49.8) 		13.3
(55.9) 		18.0
(64.4) 		22.1
(71.8) 		24.9
(76.8) 		29.3
(84.7) 		30.1
(86.2) 		26.1
(79.0) 		21.6
(70.9) 		16.4
(61.5) 		11.0
(51.8) 		19.3
(66.7)
Daily mean °C (°F) 6.1
(43.0) 		6.8
(44.2) 		9.8
(49.6) 		14.2
(57.6) 		18.3
(64.9) 		21.7
(71.1) 		26.2
(79.2) 		27.2
(81.0) 		23.3
(73.9) 		18.6
(65.5) 		13.3
(55.9) 		8.3
(46.9) 		16.2
(61.2)
Mean daily minimum °C (°F) 3.7
(38.7) 		4.0
(39.2) 		6.6
(43.9) 		10.8
(51.4) 		15.0
(59.0) 		19.1
(66.4) 		23.7
(74.7) 		24.8
(76.6) 		20.9
(69.6) 		15.7
(60.3) 		10.4
(50.7) 		5.6
(42.1) 		13.4
(56.1)
Record low °C (°F) −5.8
(21.6) 		−6.0
(21.2) 		−4.1
(24.6) 		−0.2
(31.6) 		4.0
(39.2) 		9.2
(48.6) 		15.0
(59.0) 		15.8
(60.4) 		9.8
(49.6) 		5.5
(41.9) 		0.5
(32.9) 		−3.6
(25.5) 		−6.0
(21.2)
Average precipitation mm (inches) 67.5
(2.66) 		57.2
(2.25) 		90.6
(3.57) 		89.7
(3.53) 		95.6
(3.76) 		171.2
(6.74) 		210.2
(8.28) 		272.3
(10.72) 		227.8
(8.97) 		95.1
(3.74) 		69.5
(2.74) 		55.6
(2.19) 		1,502.3
(59.15)
Average precipitation days (≥ 0.1 mm) 12.2 10.2 10.3 9.4 9.8 11.7 11.8 13.2 11.2 6.7 9.8 11.5 127.8
Average snowy days 7.2 4.2 1.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.4 5.3 18.1
Average relative humidity (%) 64.0 63.3 63.2 64.8 68.4 77.9 78.3 76.2 73.7 66.4 65.0 64.1 68.8
Mean monthly sunshine hours 70.2 110.0 166.0 196.5 212.2 159.7 189.8 195.1 158.9 173.3 123.7 79.1 1,834.5
Percent possible sunshine 22.2 34.0 42.8 49.8 49.2 39.7 44.7 47.2 43.5 50.7 40.2 27.4 41.7
Source: Korea Meteorological Administration (percent sunshine 1981–2010)[41][42][43]
Climate data for Gosan-ri, Hangyeong-myeon, Jeju City (1991–2020 normals, extremes 1988–present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 18.8
(65.8) 		20.1
(68.2) 		21.4
(70.5) 		27.3
(81.1) 		27.5
(81.5) 		29.6
(85.3) 		34.3
(93.7) 		35.5
(95.9) 		32.5
(90.5) 		30.3
(86.5) 		26.8
(80.2) 		21.9
(71.4) 		35.5
(95.9)
Mean daily maximum °C (°F) 8.4
(47.1) 		9.4
(48.9) 		12.5
(54.5) 		16.7
(62.1) 		20.4
(68.7) 		23.7
(74.7) 		27.4
(81.3) 		29.3
(84.7) 		26.1
(79.0) 		21.4
(70.5) 		16.4
(61.5) 		11.0
(51.8) 		18.6
(65.5)
Daily mean °C (°F) 6.1
(43.0) 		6.6
(43.9) 		9.4
(48.9) 		13.4
(56.1) 		17.1
(62.8) 		20.7
(69.3) 		24.9
(76.8) 		26.4
(79.5) 		23.0
(73.4) 		18.5
(65.3) 		13.5
(56.3) 		8.5
(47.3) 		15.7
(60.3)
Mean daily minimum °C (°F) 3.8
(38.8) 		4.1
(39.4) 		6.5
(43.7) 		10.5
(50.9) 		14.3
(57.7) 		18.4
(65.1) 		22.9
(73.2) 		24.1
(75.4) 		20.6
(69.1) 		15.9
(60.6) 		10.9
(51.6) 		5.9
(42.6) 		13.2
(55.8)
Record low °C (°F) −6.2
(20.8) 		−3.0
(26.6) 		−2.3
(27.9) 		3.3
(37.9) 		9.2
(48.6) 		12.7
(54.9) 		16.8
(62.2) 		17.1
(62.8) 		14.8
(58.6) 		7.3
(45.1) 		0.8
(33.4) 		−2.0
(28.4) 		−6.2
(20.8)
Average precipitation mm (inches) 40.6
(1.60) 		47.8
(1.88) 		76.2
(3.00) 		94.7
(3.73) 		117.7
(4.63) 		158.1
(6.22) 		167.7
(6.60) 		201.9
(7.95) 		120.4
(4.74) 		56.9
(2.24) 		60.2
(2.37) 		40.7
(1.60) 		1,182.9
(46.57)
Average precipitation days (≥ 0.1 mm) 10.6 9.0 10.2 9.0 9.6 11.3 11.3 13.1 9.6 6.3 8.6 10.4 119
Average snowy days 5.9 3.0 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.3 4.0 14.5
Average relative humidity (%) 66.9 68.0 69.9 74.2 80.2 86.2 89.2 83.9 77.8 69.7 67.9 66.5 75.0
Mean monthly sunshine hours 95.4 131.0 175.4 196.3 205.3 156.0 172.6 219.7 187.4 206.6 150.7 106.3 2,002.7
Percent possible sunshine 28.7 40.7 45.0 50.3 46.9 36.8 40.4 52.0 50.5 58.8 48.9 34.9 44.7
Source: Korea Meteorological Administration (snow and percent sunshine 1981–2010)[41][42][43]
Climate data for Chuja Islands, Jeju City (1993–2020 normals)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) 7.2
(45.0) 		8.4
(47.1) 		11.5
(52.7) 		15.6
(60.1) 		19.4
(66.9) 		22.8
(73.0) 		26.8
(80.2) 		28.9
(84.0) 		25.5
(77.9) 		21.0
(69.8) 		15.3
(59.5) 		9.7
(49.5) 		17.7
(63.9)
Daily mean °C (°F) 5.0
(41.0) 		5.7
(42.3) 		8.6
(47.5) 		12.5
(54.5) 		16.3
(61.3) 		19.9
(67.8) 		24.3
(75.7) 		26.2
(79.2) 		22.9
(73.2) 		18.4
(65.1) 		12.8
(55.0) 		7.5
(45.5) 		15.0
(59.0)
Mean daily minimum °C (°F) 2.8
(37.0) 		3.3
(37.9) 		6.0
(42.8) 		10.0
(50.0) 		13.9
(57.0) 		17.8
(64.0) 		22.2
(72.0) 		24.2
(75.6) 		21.1
(70.0) 		16.4
(61.5) 		10.6
(51.1) 		5.1
(41.2) 		12.8
(55.0)
Average precipitation mm (inches) 27.2
(1.07) 		40.3
(1.59) 		73.0
(2.87) 		79.6
(3.13) 		92.5
(3.64) 		152.7
(6.01) 		190.3
(7.49) 		201.8
(7.94) 		132.9
(5.23) 		57.9
(2.28) 		46.6
(1.83) 		32.9
(1.30) 		1,127.7
(44.40)
Average precipitation days (≥ 0.1 mm) 5.9 5.5 7.0 7.7 7.8 8.8 9.1 8.5 6.9 4.6 5.9 7.4 85.1
Source: Korea Meteorological Administration[41]
Climate data for Jeongbang-dong, Seogwipo (1991–2020 normals, extremes 1961–present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 20.7
(69.3) 		23.6
(74.5) 		23.8
(74.8) 		28.5
(83.3) 		30.4
(86.7) 		31.5
(88.7) 		35.8
(96.4) 		35.9
(96.6) 		34.8
(94.6) 		30.9
(87.6) 		28.0
(82.4) 		21.9
(71.4) 		35.9
(96.6)
Mean daily maximum °C (°F) 10.8
(51.4) 		11.8
(53.2) 		14.7
(58.5) 		18.6
(65.5) 		22.3
(72.1) 		24.7
(76.5) 		28.3
(82.9) 		30.1
(86.2) 		27.4
(81.3) 		23.5
(74.3) 		18.4
(65.1) 		13.1
(55.6) 		20.3
(68.5)
Daily mean °C (°F) 7.2
(45.0) 		8.2
(46.8) 		11.0
(51.8) 		15.0
(59.0) 		18.8
(65.8) 		21.8
(71.2) 		25.7
(78.3) 		27.2
(81.0) 		24.1
(75.4) 		19.6
(67.3) 		14.6
(58.3) 		9.4
(48.9) 		16.9
(62.4)
Mean daily minimum °C (°F) 4.1
(39.4) 		4.8
(40.6) 		7.5
(45.5) 		11.6
(52.9) 		15.8
(60.4) 		19.5
(67.1) 		23.8
(74.8) 		24.9
(76.8) 		21.5
(70.7) 		16.4
(61.5) 		11.2
(52.2) 		6.2
(43.2) 		13.9
(57.0)
Record low °C (°F) −6.4
(20.5) 		−6.3
(20.7) 		−4.4
(24.1) 		0.2
(32.4) 		7.2
(45.0) 		11.9
(53.4) 		14.8
(58.6) 		16.8
(62.2) 		12.2
(54.0) 		6.8
(44.2) 		0.0
(32.0) 		−4.1
(24.6) 		−6.4
(20.5)
Average precipitation mm (inches) 60.7
(2.39) 		77.9
(3.07) 		130.3
(5.13) 		187.0
(7.36) 		223.6
(8.80) 		267.6
(10.54) 		275.8
(10.86) 		315.7
(12.43) 		208.8
(8.22) 		100.4
(3.95) 		86.2
(3.39) 		55.6
(2.19) 		1,989.6
(78.33)
Average precipitation days (≥ 0.1 mm) 9.8 9.6 10.5 10.1 10.7 12.8 13.8 14.3 10.9 5.8 8.1 8.9 125.3
Average snowy days 3.8 2.4 0.8 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.1 3.1 10.2
Average relative humidity (%) 63.0 62.5 62.4 65.2 70.6 80.7 86.1 80.9 73.6 64.8 64.7 63.2 69.8
Mean monthly sunshine hours 153.5 157.4 185.8 196.5 203.5 136.3 144.8 187.7 174.7 208.8 166.8 158.8 2,074.6
Percent possible sunshine 48.0 49.2 46.9 48.9 46.3 33.6 32.5 44.5 47.4 58.8 54.3 52.1 46.2
Source: Korea Meteorological Administration (percent sunshine 1981–2010)[41][42][43]
Climate data for Seongsan-eup, Seogwipo (1991–2020 normals, extremes 1971–present)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Record high °C (°F) 20.9
(69.6) 		22.3
(72.1) 		22.7
(72.9) 		28.1
(82.6) 		30.6
(87.1) 		31.8
(89.2) 		36.2
(97.2) 		35.5
(95.9) 		33.3
(91.9) 		30.1
(86.2) 		25.7
(78.3) 		22.1
(71.8) 		36.2
(97.2)
Mean daily maximum °C (°F) 8.9
(48.0) 		10.1
(50.2) 		13.6
(56.5) 		18.0
(64.4) 		21.9
(71.4) 		24.2
(75.6) 		28.1
(82.6) 		29.7
(85.5) 		26.5
(79.7) 		22.0
(71.6) 		16.7
(62.1) 		11.2
(52.2) 		19.2
(66.6)
Daily mean °C (°F) 5.4
(41.7) 		6.3
(43.3) 		9.5
(49.1) 		13.8
(56.8) 		17.7
(63.9) 		20.9
(69.6) 		25.1
(77.2) 		26.5
(79.7) 		23.2
(73.8) 		18.2
(64.8) 		12.7
(54.9) 		7.5
(45.5) 		15.6
(60.1)
Mean daily minimum °C (°F) 2.1
(35.8) 		2.5
(36.5) 		5.2
(41.4) 		9.4
(48.9) 		13.7
(56.7) 		17.9
(64.2) 		22.6
(72.7) 		23.9
(75.0) 		20.2
(68.4) 		14.5
(58.1) 		8.8
(47.8) 		3.9
(39.0) 		12.1
(53.8)
Record low °C (°F) −7.0
(19.4) 		−6.4
(20.5) 		−4.7
(23.5) 		−1.3
(29.7) 		1.7
(35.1) 		8.2
(46.8) 		13.7
(56.7) 		16.2
(61.2) 		10.4
(50.7) 		3.2
(37.8) 		−0.6
(30.9) 		−4.0
(24.8) 		−7.0
(19.4)
Average precipitation mm (inches) 77.5
(3.05) 		83.2
(3.28) 		139.4
(5.49) 		161.3
(6.35) 		178.0
(7.01) 		231.9
(9.13) 		271.3
(10.68) 		343.2
(13.51) 		248.6
(9.79) 		114.0
(4.49) 		102.8
(4.05) 		78.8
(3.10) 		2,030
(79.92)
Average precipitation days (≥ 0.1 mm) 11.0 9.8 10.4 9.4 9.8 12.8 12.7 13.3 10.8 6.3 9.0 10.1 125.4
Average snowy days 6.1 3.7 0.7 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.2 3.8 14.6
Average relative humidity (%) 67.4 65.5 65.4 67.4 72.2 82.6 85.6 81.5 76.3 69.4 68.7 67.7 72.5
Mean monthly sunshine hours 128.6 145.5 181.5 198.0 208.7 141.1 160.3 192.6 167.2 192.0 156.7 134.7 2,006.9
Percent possible sunshine 38.7 47.3 45.8 49.4 47.7 33.8 35.9 44.0 44.5 55.0 49.6 42.1 44.2
Source: Korea Meteorological Administration (snow and percent sunshine 1981–2010)[41][42][43]
Climate data for Seongpanak, Hallasan (elevation: 760 m (2,490 ft), 1991–2020 normals)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) 2.8
(37.0) 		4.7
(40.5) 		9.0
(48.2) 		14.5
(58.1) 		18.9
(66.0) 		21.4
(70.5) 		24.7
(76.5) 		24.7
(76.5) 		21.1
(70.0) 		16.6
(61.9) 		11.2
(52.2) 		5.2
(41.4) 		14.6
(58.3)
Daily mean °C (°F) −0.4
(31.3) 		1.0
(33.8) 		4.9
(40.8) 		10.2
(50.4) 		14.7
(58.5) 		17.7
(63.9) 		21.4
(70.5) 		21.6
(70.9) 		17.8
(64.0) 		12.8
(55.0) 		7.4
(45.3) 		1.9
(35.4) 		10.9
(51.6)
Mean daily minimum °C (°F) −3.1
(26.4) 		−2.3
(27.9) 		0.9
(33.6) 		5.9
(42.6) 		10.6
(51.1) 		14.3
(57.7) 		18.5
(65.3) 		18.9
(66.0) 		15.0
(59.0) 		9.3
(48.7) 		4.0
(39.2) 		−1.0
(30.2) 		7.6
(45.7)
Average precipitation mm (inches) 137.1
(5.40) 		182.4
(7.18) 		258.8
(10.19) 		414.9
(16.33) 		465.9
(18.34) 		451.7
(17.78) 		583.9
(22.99) 		717.0
(28.23) 		581.1
(22.88) 		237.2
(9.34) 		197.5
(7.78) 		153.5
(6.04) 		4,381
(172.48)
Average precipitation days (≥ 0.1 mm) 13.0 11.5 11.0 10.8 11.1 14.1 17.8 18.7 15.6 9.2 11.6 13.4 157.8
Source: Korea Meteorological Administration[41]
Climate data for Witse Oreum, Hallasan (elevation: 1,672 m (5,486 ft), 2003–2009 normals)
Month Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Year
Mean daily maximum °C (°F) −1.6
(29.1) 		0.9
(33.6) 		3.4
(38.1) 		10.0
(50.0) 		14.9
(58.8) 		18.1
(64.6) 		20.3
(68.5) 		20.6
(69.1) 		18.1
(64.6) 		13.2
(55.8) 		6.8
(44.2) 		0.0
(32.0) 		10.4
(50.7)
Daily mean °C (°F) −5.9
(21.4) 		−3.5
(25.7) 		−0.8
(30.6) 		5.2
(41.4) 		10.3
(50.5) 		14.0
(57.2) 		17.4
(63.3) 		17.4
(63.3) 		14.2
(57.6) 		8.2
(46.8) 		2.2
(36.0) 		−3.5
(25.7) 		6.4
(43.5)
Mean daily minimum °C (°F) −9.1
(15.6) 		−7.5
(18.5) 		−5.1
(22.8) 		0.7
(33.3) 		5.7
(42.3) 		10.4
(50.7) 		14.7
(58.5) 		14.5
(58.1) 		11.0
(51.8) 		4.3
(39.7) 		−0.9
(30.4) 		−6.6
(20.1) 		2.7
(36.9)
Average precipitation mm (inches) 46.9
(1.85) 		128.0
(5.04) 		301.2
(11.86) 		426.1
(16.78) 		653.1
(25.71) 		651.9
(25.67) 		742.3
(29.22) 		836.4
(32.93) 		526.7
(20.74) 		126.5
(4.98) 		165.8
(6.53) 		64.6
(2.54) 		4,669.4
(183.83)
Source: Jeju Regional Meteorological Administration[44]

Economy

Tourism is an important component of the local economy. The island is sometimes called "South Korea’s Hawaii". Tourists from China do not require a visa to visit Jeju, unlike the rest of South Korea, and in the 2010s have started visiting on specialised package tours to acquire a South Korean driver's license; the test is similar to that in China, but can be completed in less time and is easier, application and test forms are available in many languages, and a South Korean license, unlike a Chinese license, makes the holder eligible for an International Drivers License.[45]

Tourism

Tourists in Jeju

In 1962, the South Korean government established the Korean National Tourism Corporation (KNTC) to monitor and regulate internal and external tourism, and it was later renamed the Korean National Tourism Organization (KNTO).[46] While Korea lacks abundant natural resources, tourism is an entity that generates income nationwide for South Korea. In Jeju-do province, specifically, tourism has proven to be beneficial and has been a growing contributor to the economy.[4] Jeju Island, often compared to Hawaii, “is the winter destination for Asian tourist seeking warm weather and beautiful beaches.”[47]

The island is home to 660,000 people, but hosts 15,000,000 visitors per year.[48] English is not widely spoken in Jeju, and as a matter of fact, “the local dialect is different enough from Korean that it is recognized as a distinct language.”[49] “Until recently, Chinese travelers accounted for 80% of foreign travelers;”[49] however, due to the installation of THAAD (The Terminal High Altitude Area Defense) system in Korea, Chinese travel has dwindled drastically. “THAAD is supposed to shield against North Korean missiles”[50] however China views it as a security threat. Though in the past year [2017] tourism has declined sharply, visits to Jeju continue to be a vacation destination for Asia. There are no visa requirements for visitors staying up to 90 days[4] and future plans to build a second international airport have been discussed. Due to the decline of visitors caused by China's travel ban to Korea due to the concern of THAAD, talks and discussions continue to be held regarding a second airport to service over 45 million people with an anticipated completion by 2035.[49] The current Jeju International Airport is crowded, as it services “30 million, which is 4 million more than it was designed to handle.”[51] The current desire of the existing Jeju International Airport includes wanting to add more direct flights, nonstop to major cities including Tokyo, Osaka, Beijing, Shanghai, and Taipei.[4]

Beach on Jeju

While the economy booms with foreign travel, residents suffer negative repercussions of Jeju tourism. “Most commercial facilities are owned by foreigners and major companies.”[49] In addition to increasing tourism, issues such as beach pollution, traffic, and overconsumption of underground water present a problem.[49]

Jeju has three UNESCO World Heritage sites, and is “packed with museums and theme parks and also has horses, mountains, lava tube caves, and waterfalls with clear blue ocean lapping its beaches.”[4] The Haenyeo (Jeju female divers) harvest oysters, abalone, clams, seaweed and other marine life, and their history is showcased at the island's Haenyeo museum.[49]

Due to extensive tourism, the pollution of beaches has become a serious problem. The local government of Jeju aspires to be carbon-free by 2030.[49] “Nearly half of all-electric cars in South Korea are registered in Jeju”.[49]

In addition to the aspirations of an additional airport and the expansion of tourism on the island, Jeju is home to a small technological hub. In 2005, the Jeju Science Park was created, a complex for technology companies and organizations. Since its implementation, it has attracted 117 IT and biotech companies and is home to the Daum Kakao Corporation headquarters.[52]

One of the most popular surfing spots in Korea, Jeju Island is also the birthplace of Korean surfing. Some famous beaches are Weoljung Beach and Jungmun Beach. The latter is home to the first surfing club in Korea, established in 1995.[53]

There are small islands near Jeju Island that visitors can visit by boat; the most famous of these are Udo, Gapado, and Marado. Udo is famous for its peanut ice cream and boat tours.[54]

Jeju became more well known outside Korea after two characters in the 2021 Netflix original series Squid Game mentioned it.[55] It was also the location for two episodes of the 2022 Netflix original series Extraordinary Attorney Woo, entitled "The Blue Night of Jeju I and II".

Education

Places of interest

Seongsan Ilchulbong or "Sunrise Peak"

Utilities

The island's power grid is connected to mainland plants by the HVDC Haenam–Cheju, and electricity is also provided by generators located on the island. As of 2001, there were four power plants on Jeju, with more under planning and construction. The most notable of these are the gas-fired generators of Jeju Thermal Power Plant, located in Jeju City. The present-day generators of this plant were constructed from 1982 onwards, replacing earlier structures that dated from 1968.[56] As elsewhere in Korea, the power supply is overseen by the Korea Electric Power Corporation, or KEPCO.

In February 2012, the governor of the state of Hawaii (USA), Neil Abercrombie, and the director of the Electricity Market and Smart Grid Division at the Korea Ministry of Knowledge Economy, Choi Kyu-Chong, signed a letter of intent to share information about Smart Grid technology. The Jeju Smart Grid was initially installed in 6,000 homes in Gujwa-eup and is being expanded. South Korea is using the pilot program of the Smart Grid on Jejudo as the testing ground in order to implement a nationwide Smart Grid by 2030.[57]

Transportation

The island is served by Jeju International Airport in Jeju City. The Seoul – Jeju City air route is by a significant margin the world's busiest, with around 13,400,000 passengers flown between the two cities in 2017.[58] Other cities that have flights to Jeju are Daegu, Busan, Gunsan and Gwangju.

Jeju is also accessible from Busan by ferry.[59] The travel time is between 3 and 12 hours.

The island has a public bus system, but there are no railways on the island.[60] A rail tunnel to the island, linking it to the Korea Train Express network has been proposed but is currently on hold due to cost concerns and local opposition in Jeju, who are aware of an eventual loss of their indigenous traits.[61]

Cheju/Jeju Naval Base

Main articles: Jeju Naval Base and Jeju Naval Base controversy

In 1993 the Republic of Korea (ROK) began planning a naval base on Jeju Island. Construction started in Gangjeong village in 2007, with planned completion by 2011.[62] The base was designed to be a mixed military-commercial port similar to those in Sydney and Hawaii, that could accommodate 20 warships and three submarines, as well as two civilian cruise ships displacing up to 150,000 tons. Its official name is the Jeju Civilian-Military Complex Port. Jeju residents, environmentalists, and opposition parties opposed the construction[63] claiming that environmental hazards will damage the "Island of Peace" designated as such by the government.[64] The protests caused delays in the construction. The base was completed in 2016.[65]

Health

In 2002, scarlet fever was reported to be in Korean children in Jeju Province.[66] Scientists have been doing research on the matter by creating an age-period-cohort (APC) analysis to back up their relevant hypotheses regarding this emerging outbreak. The Korean National Health Insurance Service analyzed this data from the nationwide insurance claims. Their calculations of the crude incidence rate (CIR) and applying the intrinsic estimator (IE) for age and calendar groups revealed that a total of 2,345 cases of children had the fever that was one of the top illnesses. It also led to the discovery that children aged 0–2 were the most common victims of the fever and that it was mostly boys rather than girls that carried it. The CIR decreased with age between 2002 and 2016 and the age period effect decreased in all observed years. The IE coefficients validating a cohort effect went from negative to positive in 2009. To this day, no one can explain how these children in Jeju Province had scarlet fever, but results suggest that it might be explained through the cohort effect. Further descriptive epidemiological studies are needed to test children that are born after 2009, to determine whether they have the fever or not.

Studies show that Jeju Province is recorded as the region showing the highest incidence of severe fever with thrombocytopenia syndrome (SFTS) in South Korea.[67] Just like the scarlet fever, the goal of this study was to determine the epidemiological and clinical characteristics of SFTS patients in Jeju Province. The data that was collected on this situation were obtained by the Integrated Diseases and Health Control System of the Korea Centers for Disease Control and Prevention (KCDCIS). 55 residents of Jeju were selected to test the criteria at KCDCIS and confirm the cases of SFTS with a residence listed in Jeju Province at the time of diagnosis, between July 16, 2014, and November 30, 2018. Results show that of the 55 confirmed cases of SFTS, the case fatality rate was 10.9% (95% confidence interval [CI], 4.1 to 22.2). The most common symptoms of the SFTS were severe fever, myalgia, and diarrhea. There have been fatality rates of 83.6% (95% Cl, 71.2 to 92.2), 45.5% (95% Cl, 32.0 to 59.5), and 40.0% (95% CI, 27.0 to 54.1). This particular study from 2014 to 2018, has been proven to have a lower case fatality rate and a lower incidence of severe fever, myalgia, and confusion than that of the cases nationwide of 2013–2015.

See also

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Wikivoyage has a travel guide for Jeju.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Jeju_Island&oldid=1124827335"