Apo Reef Apo Reef Apo Reef is a coral reef system in the Philippines situated on the western waters of Occidental Mindoro province in the Mindoro Strait. Encompassing , it is by no means the world's second-largest contiguous coral reef system, but is the largest in the country. The reef and its surrounding waters are protected areas in the country administered as the Apo Reef Natural Park (ARNP). It is one of the best known and most popular dive sites in the country. It is listed in the tentative list for UNESCO World Heritage Sites. Apo Reef can be found around west
Batt Reef Batt Reef Batt Reef is a coral reef off Port Douglas in Shire of Douglas, Queensland, Australia. Batt Reef is centred at and is part of the Great Barrier Reef. The reef is about 18 km long by 5 km (11 miles by 3 miles) wide, lying northwest to southeast, at the northern side of Trinity Passage that leads from the inner Reef channel from Trinity Bay to the Pacific Ocean. The north-west tip of the reef lies east of the Low Islets (Low and Woody Islands) which are in turn east of Newell Beach and northeast of Port Douglas.