Tourism in the Philippines rising form of tourism in the Philippines, especially among locals and Western foreigners. Among the most famous hiking areas in the country are Mount Apo, Mount Pinatubo, Mount Halcon, Mount Banahaw, Mount Makiling, and Mount Pulag. Due to the diverse number of flora and fauna of the country, researchers from around the world have flocked various biodiversity sites in Philippine environmental corridors. Among the big draws for environmental researchers include Mount Mantalingajan, Sibuyan Island, Dinagat Islands, Mount Hamiguitan, Central Panay Mountain Range, Verde Island Passage, Tubbataha Reef, Mount Malindang, Northern Sierra Madre Natural Park, and Turtle Islands, Tawi-Tawi. Local and
Mount Apo of ; with two peripheral areas of and as buffer zones, provided for its management and for other purposes. Although a declared a Natural Park, the current climbing trails are littered with rubbish by irresponsible climbers, opening paths for soil erosion across the already denuded mountain sides. Some mountain and social climbing groups conduct climbs after the Holy Week/Easter, the peak climbing season, to clean the affected areas. In 1987, the National Geographic Society based in Washington, DC in the United States, published a book entitled, ""Our World's Heritage"", where Mount Apo was noted as a 'site of Word Heritage