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
San Cristóbal de La Laguna where the town was called "Aguere" by the aboriginal Guanches (the name is still used in the literature). Later he founded the city as "Villa de San Cristóbal de La Gran Laguna" (in memory of a pond or lake that was in place). Later he established the San Cristóbal de La Laguna, and today is known simply as "La Laguna" (the lake). The coat of arms was granted by Queen Joanna of Castile on 23 March 1510, as arms of the island of Tenerife. The town of La Laguna, being the capital of the island during the first times after