Ardasier Reef

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Ardasier Reef
Disputed island
Other names: Guangxingzai Jiao 光星仔礁;
Terumbu Ubi;
Antonio Luna;
đá Kiệu Ngựa
Ardasier Reef, Spratly Islands.png
Satellite image of Ardasier Reef by NASA.
Ardasier Reef is located in South China Sea
Ardasier Reef
Ardasier Reef (South China Sea)
Location South China Sea
Coordinates 7°37′19″N 113°51′39″E / 7.62194°N 113.86083°E / 7.62194; 113.86083Coordinates: 7°37′19″N 113°51′39″E / 7.62194°N 113.86083°E / 7.62194; 113.86083
7°37′19″N 113°51′39″E / 7.62194°N 113.86083°E / 7.62194; 113.86083
Archipelago Spratly Islands
Administered by
Claimed by
 People's Republic of China
City Sansha, Hainan
Municipality Kalayaan, Palawan
 Republic of China (Taiwan)
Municipality Cijin, Kaohsiung
District Truong Sa, Khanh Hoa

Ardasier Reef, known as Guangxingzai Jiao (Chinese: 光星仔礁) in China, Terumbu Ubi in Malaysia, Antonio Luna in the Philippines and đá Kiệu Ngựa in Vietnam, is triangular shaped and lies 26km north-northeast of Swallow Reef. Ardasier Reef is 9km east of Dallas Reef, with the massive Ardasier Bank extending 69km to the east-northeast.

Ardasier Reef is steep-to, except on its eastern side where it adjoins the Ardasier Bank. Its huge areas of sandy patches have an abundance of shy Guitar Sharks, Eagle Rays, Giant Reef Rays and other intriguing bottom dwelling creatures that bury themselves in the sand.

The Royal Malaysian Navy has maintained a naval station on the reef, called "Uniform Station", since 1986.[1]


  1. ^ Joshua Ho; Sam Bateman (15 February 2013). Maritime Challenges and Priorities in Asia: Implications for Regional Security. Routledge. pp. 74–. ISBN 978-1-136-29820-2.