Hills and mountains.
Mount on the Philippine Islands is part of the volcanic mountains of the surrounding area is a circle in the Pacific Ocean. There are a large number of lakes and rivers in between his slot. The highest mountain is Mount APO in the Philippines (Apo) is up to 2950 meters from sea level. Located on the island of Mindanao.
Philippine volcano is not yet another level of 50 and there are limestone mountains are scattered on islands around, and Moreover, the Philippine Islands, also located in world's earthquakes, too. Severe earthquakes so often.
Plains between the hills.
There is a good fertile soil, because fertilizer from volcanic ashes for planting.