Irving Reef, also known as Balagtas Reef ( fil, Bahura ng Balagtas; Mandarin , vi, đá Cá Nhám), is a coral

reef A reef is a ridge or shoal of rock, coral or similar relatively stable material, lying beneath the surface of a natural body of water. Many reefs result from natural, abiotic processes—deposition of sand, wave erosion planing down rock ...

in the

Spratly Islands The Spratly Islands ( fil, Kapuluan ng Kalayaan; zh, c=南沙群島/南沙群岛, s=, t=, p=Nánshā Qúndǎo; Malay, id, Kepulauan Spratly; vi, Quần đảo Trường Sa) are a disputed archipelago in the South China Sea. Composed ...

South China Sea The South China Sea is a marginal sea of the Western Pacific Ocean. It is bounded in the north by the shores of South China (hence the name), in the west by the Indochinese Peninsula, in the east by the islands of Taiwan and northwestern Ph ...

. It is

occupied ' ( Norwegian: ') is a Norwegian political thriller TV series that premiered on TV2 on 5 October 2015. Based on an original idea by Jo Nesbø, the series is co-created with Karianne Lund and Erik Skjoldbjærg. Season 2 premiered on 10 Octobe ...

by the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

as part of Kalayaan,

Palawan Palawan (), officially the Province of Palawan ( cyo, Probinsya i'ang Palawan; tl, Lalawigan ng Palawan), is an archipelagic province of the Philippines that is located in the region of Mimaropa. It is the largest province in the country in t ...

, and is also claimed by the

People's Republic of China China, officially the People's Republic of China (PRC), is a country in East Asia. It is the world's List of countries and dependencies by population, most populous country, with a Population of China, population exceeding 1.4 billion, slig ...

, the

Republic of China (Taiwan) Taiwan, officially the Republic of China (ROC), is a country in East Asia, at the junction of the East and South China Seas in the northwestern Pacific Ocean, with the People's Republic of China (PRC) to the northwest, Japan to the northeast ...

and

Vietnam Vietnam or Viet Nam ( vi, Việt Nam, ), officially the Socialist Republic of Vietnam,., group="n" is a country in Southeast Asia, at the eastern edge of mainland Southeast Asia, with an area of and population of 96 million, making ...

. The reef is southwest of

West York Island West York Island, also known as Likas Island ( fil, Pulo ng Likas, lit=Island of Naturality; Mandarin ; ), and several other names. With an area of , it is the third largest of the naturally occurring Spratly Islands, and the second largest (af ...

. It is in length.D. J. Hancox, John Robert Victor Prescott, ''A Geographical Description of the Spratly Islands and an Account of Hydrographic Surveys Amongst Those Islands'' ( International Boundaries Research Unit, 1995, , p. 7
Excerpts available
at

Google Books Google Books (previously known as Google Book Search, Google Print, and by its code-name Project Ocean) is a service from Google Inc. that searches the full text of books and magazines that Google has scanned, converted to text using optical ...

. There is a

sand cay A cay ( ), also spelled caye or key, is a small, low- elevation, sandy island on the surface of a coral reef. Cays occur in tropical environments throughout the Pacific, Atlantic, and Indian Oceans, including in the Caribbean and on the ...

near the northern extremity.

References

Reefs of the Spratly Islands Reefs of China Reefs of the Philippines Reefs of Taiwan Reefs of Vietnam Kalayaan, Palawan Landforms of Khánh Hòa province {{philippines-geo-stub