Pacific Ocean width at about 5°N latitude, where it stretches approximately from Indonesia to the coast of Colombia—halfway around the world, and more than five times the diameter of the Moon. The lowest known point on Earth—the Mariana Trench—lies below sea level. Its average depth is , putting the total water volume at roughly . Due to the effects of plate tectonics, the Pacific Ocean is currently shrinking by roughly per year on three sides, roughly averaging a year. By contrast, the Atlantic Ocean is increasing in size. Along the Pacific Ocean's irregular western margins lie many seas, the largest of which
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