(, literally "flat"; ; ) is the second smallest island
of Spratly Islands
. It is the sixth largest among the Philippine-occupied Spratly islands. It has an area of 0.57 hecatres (5,700 sq. m). It is about 6 miles (10 km) southwest of Philippine-occupied Nanshan Island
, and is also controlled by the Philippines as part of Kalayaan, Palawan
. The island is claimed
by the People's Republic of China
, Republic of China
, and Vietnam
The island is a low, flat, sandy cay, 240 by 90 m, and is subject to erosion. It changes its shape seasonally. The sand build up will depend largely on the direction of prevailing wind and waves. It takes the shape of an elongated one for some years now and a shape like that of a crescent moon for few years ago and it formed the shape of a letter "S" in the past. Like Lankiam Cay
, it is also barren of any vegetation. No underground water source is found in the island.
Presently, this island serves only as a military observation post, and is guarded by Philippine soldiers stationed at nearby Nanshan Island. The island is too small and manning it 24 hours is a difficult task. Hence, the soldiers at Nanshan Island guard it afar by regularly "watching" it from a tall structure (to increase the horizon
distance). The soldiers also regularly visit the island.