菲律宾群岛地形多以山地为主，占总面积3/4以上，除少数岛屿有较宽广的内

Islands Philippines mostly mountainous terrain, more than 3/4 of the total area, except for a few islands have broader inland plains, the majority of the island is only a narrow coastal plain scattered, and for the shallow sea between the islands, reefs and more . Both sides of the deep sea Islands, east of Samar and Mindanao Philippine Trench, the deepest of 10,479 meters, is one of the world's deepest oceans.

The Philippine Islands are mostly mountainous, accounting for more than three-quarters of the total area, with the exception of a few islands with broader inland plains, most islands have only scattered narrow plains along the coast, between the islands are shallow sea, many coral reefs. On both sides of the archipelago are deep sea, and the Philippine Trench east of Sama and Mindanao, at a depth of 10,479 meters, is one of the deepest marine areas in the world.

The terrain of Philippine Islands is mainly mountainous, accounting for more than 3 / 4 of the total area. Except for a few islands with relatively wide inland plain, most islands only have sporadic narrow plain along the coast, and there are shallow sea and many coral reefs between the islands. On both sides of the islands are the deep sea, the Philippine trench to the east of SAMA island and Mindanao Island, with a maximum depth of 10479 meters. It is one of the deepest areas in the world.