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 Salada Laguna Salada Laguna Salada (, "Salt Lake") is a municipality ("municipio") of the Valverde province in the Dominican Republic. Within the municipality there are three municipal districts ("distritos municipal"): Cruce de Guayacanes, Jaibón and La Caya. Laguna Salada borders the Septentrional mountain range to the north (which separates it from Puerto Plata), the Yaque del Norte River to the south (which separates it from Mao), the Maizal and Boca de Mao municipal districts to the east (which separate it from Esperanza) and Guayubín to the west (which separates it from the Monte Cristi province). Agriculture is the main economic activity