Tags: World Heritage Site.
Apo Reef is a series of coral reefs encompassing 34 square kilometers within the waters of Occidental Mindoro in the Philippines. It is the world’s second-largest contiguous coral reef system and the largest in the country. The reef and its surrounding waters are administered as a National Park as part of the Apo Reef Natural Park project; the Apo Reef is within the Sulu Sea.
