Tsuken Island

Tsuken Island (津堅島, Tsuken-jima, Okinawan: Biti) is an island in the Pacific Ocean in Uruma, Okinawa Prefecture, Japan. The island is southernmost of the Yokatsu Islands, and is located 3.8 kilometres (2.4 mi) south south-east of the Katsuren Peninsula off Okinawa Island at the entrance of Nakagusuku Bay. Tsuken covers 1.88 square kilometres (0.73 sq mi) and has a population of 487 residents.[1][2][3]

Tsuken Island
Native name:
津堅島
Japanese: Tsuken-jima
Okinawan: Biti

Nickname: Carrot Island
Aerial view of Tsuken Island
Tsuken Island
Geography
Coordinates26°15′02″N 127°56′31″E
ArchipelagoOkinawa Islands
Adjacent bodies of waterPacific Ocean
Area1.88 km2 (0.73 sq mi)
Length2.3 km (1.43 mi)
Width1.3 km (0.81 mi)
Coastline7 km (4.3 mi)
Highest elevation38.8 m (127.3 ft)
Administration
RegionKyūshū
PrefectureOkinawa
CityUruma
Demographics
Population485 (2005)

The only settlement on Tsuken is located in the southwest of the island. The settlement includes the Port of Tsuken, a post office, and a medical clinic attached to the Okinawa Prefectural Chubu Hospital in Uruma. The island is home to Tsuken Elementary School (19 students) and Tsuken Junior High School (11 students). The island has no high school; students must leave the island after junior high school to continue their education.[4] While residents of Tsuken speak standard Japanese, usage of the Okinawan language remains strong on the island, specifically the South-Central dialect of the language.[2][3]

Geography
Map of the Okinawa Islands, showing the location of Tsuken Island to the south of Okinawa Island

Tsuken runs 2.3 kilometres (1.4 mi) from north to south and .8 kilometres (0.50 mi) to 1.3 kilometres (0.81 mi) east to west. Its highest point is in the southwest of the island at 38.8 metres (127 ft).[4]

Tsuken was once covered with a dense forest of fountain palms, but the middle portion of Tsuken was entirely burned during World War II, and palm groves remain only at the north of the island.[5] Thick belts of vegetation that now exist around coastal areas of the island protect the settlement and agricultural land from sea breeze. The central and northern parts of Tsuken are used for the production of carrots, a noted agricultural product of the island.[2][3]

History
Nakabaru Site, Ikei Island

Tsuken is historically linked to Kudaka Island to the south. Safe passage between the islands was possible at low tide via small boats, and there was considerable cultural exchange between the islands. Tsuken was settled early in the history of the Ryukyu Islands, as evidenced by its numerous shell mounds, of which three have been excavated. Tsuken was home to the ruins of a small castle, the Kubō Gusuku.[6] Commodore Matthew Calbraith Perry recorded the island as "Taking Island" in his narrative on travel to the Ryukyu Islands.[2][3]

The areas of present-day Uruma were affected in World War II during the initial part of the Battle of Okinawa. L-Day, the initial land invasion of Okinawa Island, occurred on April 1, 1945. American forces swept across the island quickly, and by April 5 had secured the entirety of the Katsuren Peninsula. A smaller invasion force invaded the Yokatsu Islands on L-Day, and encountered stiff resistance from the Japanese military. Tsuken Island was completely devastated by fire in the battle. Casualties for Japanese troops were 234 killed; for the US battalion of the 27th infantry division:11 killed and 3 MIA; 80 wounded. After the capture of Tsuken, American forces swept north and reached Ikei Island on April 11, thus securing all the Yokatsu Islands.[7]

Tsuken is in a period of population decline. In 1970 the island had 1,172 residents and 245 households; by 2005 the population was at 485 residents and 210 households.[4]

Economy

Tsuken is noted for its production of carrots, and is known by the nickname "Carrot Island". With white sandy beaches and a broad coral reef, tourism is an important part of the economy. The island has three small hotels and a campground, and also sees numerous day visitors from Okinawa Island. In contrast to its population decline, tourism is growing on Tsuken: in 1975, shortly after the reversion of Okinawa Prefecture to Japan, only 3,000 tourists visited the island. In 2007 the number had grown to 48,887.[4]

Transportation

Tsuken is accessible only by ferry. The Kamiya Tourism Company operates a ferry service fives times a day between the pier at Heshikiya on the Katsuren Peninsula in Uruma City. Tsuken is reached by high-speed ferry in 12 minutes, and regular ferry in 30 minutes. The island has no bus, taxi, or rental car service; all locations on the island are reached by foot.[8]

Military training area

The Tsukenjima Training Area (FAC6082 Tsuken Jima Training Area) is used by the United States Marines and is located off the western coast of Tsuken. The training area was established in 1959 and covers 16,000 square metres (170,000 sq ft).[9][10]

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References
  1. "ビティ島" [Biti-shima]. Okinawa Wiki (in Japanese). Tokyo: Shogakukan. 2013. OCLC 173191044. Retrieved 2013-06-13.
  2. "与勝諸島" [Yokatsu Islands]. Nihon Daihyakka Zensho (Nipponika) (in Japanese). Tokyo: Shogakukan. 2013. OCLC 153301537. Archived from the original on 2007-08-25. Retrieved 2013-04-04.
  3. 沖縄県立与勝緑が丘中学校・与勝高等学校 [Okinawa Prefectural Yokatsu Senior High School-Yokatsu Midorigaoka Junior High School] (in Japanese). Uruma, Okinawa Prefecture, Japan: Okinawa Prefectural Yokatsu Senior High School-Yokatsu Midorigaoka Junior High School. 2013. Retrieved 2013-04-13.
  4. 島のデータ : 津堅島 [Island data: Tsuken] (in Japanese). Naha, Okinawa Prefecture, Japan: Okinawa Prefecture. 2009. Archived from the original on 2016-03-04. Retrieved 2013-06-13.
  5. Okinawa Rekishi Kenkyūkai, ed. (1994), 沖繩の歴史散步, Shin zenkoku rekishi sanpo shirīzu (in Japanese), 47 (Shinpan 1-han ed.), Tōkyō: Yamakawa Shuppansha, p. 109, ISBN 9784634294707, OCLC 31267327
  6. "津堅島" [Tsuken Island]. Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC 173191044. Archived from the original on 2007-08-25. Retrieved 2012-12-07.
  7. "Action in the North, Chp 6 of Okinawa: Victory in the Pacific by Major Chas. S. Nichols, Jr., USMC and Henry I. Shaw, Jr". Historical Section, Division of Public Information, U.S. Marine Corps. Archived from the original on April 13, 2010. Retrieved May 7, 2010.
  8. 地域概要 [Outline of the area] (in Japanese). Tusken, Uruma, Okinawa Prefecture, Japan: Tusken Preschool, Elementary, and Middle School. 2013. Retrieved 2013-07-18.
  9. "津堅島訓練場". Nihon Rekishi Chimei Taikei (in Japanese). Tokyo: Shogakukan. 2012. OCLC 173191044. Archived from the original on 2007-08-25. Retrieved 2012-12-07.
  10. "津堅島訓練場 (FAC6082 Tsuken Jima Training Area)" [FAC6082 Tsuken Jima Training Area] (in Japanese). Uruma, Okinawa Prefecture, Japan: City of Uruma. 2005. Retrieved Dec 28, 2012.
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