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
Mount Craddock US-ACAN redefined Mount Craddock in 2006 to apply to the southernmost peak described above. The mountain was named by US-ACAN for J. Campbell Craddock (1930–2006), leader of a University of Minnesota expedition (1962–63) that made geological investigations and cartographic surveys in the Sentinel and Heritage Ranges of the Ellsworth Mountains. During 1960–61, Craddock led a Minnesota geological expedition in examining the Jones Mountains. Mount Craddock is the second-highest point of the Craddock Massif which includes Mount Rutford (highest point), Rada Peak, and Bugueño Pinnacle. Rutford was named for R. H. Rutford, Antarctic geologist and colleague of Craddock. Rada Peak and