Apo Reef of the nearest coast of the Philippine island of Mindoro. It is separated from main island by the Apo East Pass of the Mindoro Strait. Politically, the reef lies within the jurisdiction of the Province of Occidental Mindoro in Region IV-B of the Philippines and more accurately of the Municipality of Sablayan. Tourism activities are administered by local government of Sablayan and the local office of the Department of Environment and Natural Resources (DENR). Apo Reef is roughly a triangular coral atoll formation approximately from the north to the south tip, and from east to west. It is separated by
Tiparra Reef Tiparra Reef Tiparra Reef (also spell as Tipara) is a reef located in Spencer Gulf in South Australia about west of the town of Port Hughes. The reef is described as being "a bank of sand, in extent, with depths of less than , that lies in the middle of Tiparra Bay" with a"limestone ledge, long in a N[orth] S[outh] direction and about wide, that just dries, lies on the S[outh] W[est] end of the reef N[orth] W[est] of Cape Elizabeth" (which is the southern headland of Tiparra Bay). The limestone ledge was the site of an operational lighthouse from