Geography of the Philippines Bay. Laguna de Bay, east of Manila Bay, is the largest freshwater lake in the Philippines. Several rivers have been harnessed for hydroelectric power. To protect the country's biological resources, the government has taken a first step of preparing a Biodiversity Action Plan to address conservation of threatened species. The islands are volcanic in origin, being part of the Pacific Ring of Fire, and are mostly mountainous. The highest point in the country is the peak of Mount Apo in Mindanao, which is above sea level. The second highest point can be found on Luzon at Mount Pulag, a peak
Laguna de Leche Laguna de Leche Laguna de Leche (Spanish for "Milk Lagoon", also called "Laguna Grande de Morón") is the largest natural fresh water lake in Cuba. It is located in the wetland of northern Ciego de Ávila Province, north of Morón, and has a total surface of . (The man-made Zaza Reservoir, at , is the largest in-land water surface by area in the country.) The white color is caused by the lake's limestone bed. Natural movements of the sea level cause disturbances in the water table, which releases lime particles from the lake bed into the water. A channel built