The reef is V-shaped with an area of about 10 km2 (3.9 sq mi).[1] Until at least the 1990s,[2] it was above the water only during low tide; at other times the reef could be detected by the pattern of breaking waves.[3] At the end of the 20th century, small sand dunes had developed on the reef making a territorial claim possible (an International Court of Justice judgment in 2012 stated that “low-tide elevations cannot be appropriated").[4] The development of the dunes could have occurred naturally, but it was rumoured that the island was being built up by Vietnam and China.[2]
As of 2016, the reef was unclaimed; reports to the contrary (Chinese control) were based on a confusion.[4] However, due to the reef's strategic importance it was expected that the reef would be occupied "soon".[2]
On 21 March 2021, about 220 Chinese fishing ships were moored at the reef[5] ostensibly taking shelter due to the sea conditions.[6] The Philippines considers the reef to be within its exclusive economic zone and continental shelf and protested the Chinese presence.[6] Vietnam, which also claims the reef, also protested against Chinese presence in the area.[7]
^ abHancox, David; Prescott, Victor (1995). A Geographical Description of the Spratly Islands and an Account of Hydrographic Surveys amongst Those Islands. Maritime Briefings. Vol. 1. University of Durham, International Boundaries Research Unit. p. 11. ISBN978-1897643181.{{cite book}}: CS1 maint: multiple names: authors list (link)
^Sailing Directions 161 (Enroute) - South China Sea and the Gulf of Thailand (13 ed.). Bethesda, Maryland: National Geospatial-Intelligence Agency. 2011. p. 11.
