Geography of the Philippines the Philippines, the Sierra Madre, stretching from Quezon province in the south to Cagayan in the north. 80 percent of the mountain range is tropical rainforest, which is diminishing from rampant illegal logging activity. The range serves as the eastern wall of Luzon Island that protects inhabitants from tropical cyclones usually coming from the Pacific Ocean. The largest plain of the nation is situated in the Central Luzon region and produces most of the national rice supply, earning itself the nickname ""Rice Bowl of the Philippines"". The plains encompass the provinces of Bulacan, Nueva Ecija, Pampanga, Tarlac and Pangasinan. South
Tourism in the Philippines and eight ASEAN Heritage Parks (Mount Apo, Mounts Iglit-Baco, Mount kitanglad, Mount Makiling, Tubbataha Reefs, Mount Hamiguitan, and Timpoong-Hibok-Hibok) in the Philippines. The last three lists reinforces the title of the Philippines as one of the biodiversity hotspots declared by Conservation International. The following are the most significant natural and cultural heritage sites of the Philippines: The Philippines possesses numerous significant movable tangible heritage, both in cultural and natural terms. Many of which have been declared as national treasures and are highly protected by the law. The country has four documentary heritage inscribed in the UNESCO Memory of the World