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Thridrangaviti Lighthouse

Coordinates: 63°29′20″N 20°30′47″W / 63.48883°N 20.51317°W / 63.48883; -20.51317
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Thridrangar Lighthouse, Southern Iceland, sits atop the tallest of three sea stacks.

Þrídrangaviti Lighthouse (transliterated as Thridrangaviti) is an active lighthouse 7.2 kilometres (4.5 miles) off the southwest coast of Iceland, in the archipelago of Vestmannaeyjar. It is often described as one of the most isolated lighthouses in the world.[1][2] Þrídrangar means "three rock pillars", referring to the three named sea stacks at that location: Stóridrangur (on which the lighthouse stands), Þúfudrangur, and Klofadrangur.[3] The lighthouse was commissioned on 5 July 1942.[4]

Construction

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Þrídrangaviti Lighthouse was constructed during 1938 and 1939.[4] It was originally built by hand without machinery, and it was accessible only by scaling the tallest of the three rocky stacks, whose top is 36.5 metres (120 ft) above the sea.[1] It was built under the direction of Árni Þórarinsson [Arni G. Thorarinsson], who recruited experienced mountaineers to scale the sea stack. The expert climbers were local Westman Islanders who had long supplemented their diet by gathering seabird eggs from cliffs. [5] The challenges included a sea swell at the base even during calm weather making departure from a boat onto the rock tricky; and the vertical rock had been worn smooth by the sea and was slippery. With drills and hammers, the team inserted spikes into the rock and connected them by chain. With each visit during calm weather they were able to add a few more chain links, forming a twisting route upward. Their climbing tools did not allow them to bite into the rock near the top, and there were no handholds, so using the same technique developed for gathering seabird eggs, they made a three-person "human stack" - one man on his knees, a second on top of him, and a third one climbing on the second one - for the final pitch.[5][6][7] According to Þórarinsson:

The first thing we had to do was create a road up to the cliff. We got together experienced mountaineers, all from the Westman Islands. Then we brought drills, hammers, chains and clamps to secure the chains. Once they got near the top there was no way to get any grip on the rock so one of them got down on his knees, the second stood on his back, and then the third climbed on top of the other two and was able to reach the nib of the cliff above. I cannot even tell you how I was feeling whilst witnessing this incredibly dangerous procedure.[6][8]

According to author Philip K. Allan, the weather at the top was so windy the workers could only stay there for a few hours at a time, thus it took two years to complete the house.[5] According to another source, the crew also stayed on the rock in tents for a month, during construction of the house.[4] The house was completed around the start of WWII, but the lighting equipment ordered from a Danish company could not be delivered because Denmark was now occupied by Germany. As a result there was a delay of three years to install lighting equipment, supplied by Britain.[5][4] The lighthouse was commissioned on 5 July 1942.[4]

The light was automated[clarification needed] shortly after the war.[5] A helipad for helicopter access was added in the 1950s.[9] It was converted[clarification needed] to solar power in 1993.[5]

Technical features

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  • The lighthouse building is situated about 30 metres (98 ft) above the sea [1]
  • The building is 4 metres (13 ft) square concrete whitewashed single-storey hut, with a roof that resembles a battlement on a medieval castle tower, including embrasure-like openings. The red lantern sits on the roof and is 4 metres (13 ft) high.[1][10]
  • The light is 34 metres (112 ft) above the sea (its focal plane), which determines the "height of sight",[11] meaning the light beam is first visible at sea level from 16.7 kilometres (9.0 nautical miles; 10.4 miles).[1][10][dubious – discuss]
  • The beam is a long white flash followed by a short white flash every 30s.[10]
  • The lighthouse Admiralty No. is L4802[10] — cf. List of lighthouses in Iceland

Media

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In 2009, a photo taken by Árni Sæberg and published in Morgunblaðið reached a global audience – Justin Bieber re-posted the same photo on his social media increasing its reach.[8] Yrsa Sigurðardóttir used the location in her novel Why Did You Lie? (2016/2013).[8] According to The Lighthouse Directory, videos and photos of the lighthouse "suddenly went viral in July 2016".[10] Video and photos of maintenance workers were uploaded to Facebook in July 2015.[12] The Icelandic band KALEO released a music video recorded on the helipad, on 5 July 2020, the light's 78th anniversary, soon after the start of COVID when the public was isolating and online interest in remote habitations was trending.[4][9][13]

References

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  1. ^ a b c d e "Þrídrangaviti lighthouse". TheWanders.eu. November 29, 2020. Archived from the original on 2021-01-27.
  2. ^ "Iceland's Loneliest Lighthouse". Atlas Obscura. Retrieved 2022-08-08.
  3. ^ "Incredible location for a lighthouse perched on a rock in Iceland's wild surf". Iceland Monitor. Retrieved 2022-08-08.
  4. ^ a b c d e f "KALEO releases incredible live performance for "Break my Baby" at Þrídrangar". IcelandMusic. 9 February 2021. Archived from the original on 2023-11-26. Retrieved 2023-11-25.
  5. ^ a b c d e f Allan, Philip K. (2020). "The Lighthouse at the edge of the World". Philip K. Allan website. Archived from the original on 2020-11-05. Retrieved 2024-10-30.
  6. ^ a b "The Most Isolated Lighthouse in the World". History Daily. 17 December 2017. Archived from the original on 2018-12-05. Retrieved 2023-11-25.
  7. ^ Chen, Justine (2020-02-26). "Thridrangaviti Lighthouse: The Perfect Place To Survive Any Pandemic". Elite Readers. Retrieved 2022-08-08.
  8. ^ a b c "Panorama: Incredible location for a lighthouse (Iceland)". Iceland Monitor. 7 October 2021. Retrieved 2023-12-30 – via marine-pilots.com.
  9. ^ a b "Islandský maják Þrídrangaviti". Kabinet Kuriozit (in Czech). 25 May 2021. Retrieved 2023-11-25.
  10. ^ a b c d e Rowlett, Russ. "Lighthouses of East and South Iceland". The Lighthouse Directory. University of North Carolina at Chapel Hill. Retrieved 2023-11-27.
  11. ^ In the context of lighthouses, "height of sight" refers to the elevation at which a lighthouse's light can first be seen from sea level.
  12. ^ Video of repair work at the lighthouse in 2015. (Archive)
  13. ^ KALEO (5 February 2021) [5 July 2020]. Break My Baby (Music video). Þrídrangaviti Lighthouse, Iceland. Archived from the original on 2021-02-21 – via YouTube.
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63°29′20″N 20°30′47″W / 63.48883°N 20.51317°W / 63.48883; -20.51317

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