Mount Apo In the classification system used by local popular mountaineering website PinoyMountaineer.com, the difficulty of the hike is 7 out of 9. Various sights along the trail include Lake Venado, the highest lake in the Philippines, the solfataras and the old crater near its summit. Mount Apo is a headwaters catchment area of several major river systems like Marble River, Matingaw River, connecting with the Kabacan River, part of the Pulangi River, a major tributary of the Mindanao River, the Tudaya Falls, Sibulan River , and Digos River, which flows into Davao Gulf. Mount Apo Mount Apo () and () is
Mount Roraima Mount Roraima Mount Roraima ( , "Tepuy Roraima" and "Cerro Roraima";) is the highest of the Pakaraima chain of tepui plateaus in South America. First described by the English explorer Sir Walter Raleigh during his 1595 expedition, its summit area is bounded on all sides by cliffs rising . The mountain also serves as the tripoint of Venezuela, Guyana and Brazil. Mount Roraima lies on the Guiana Shield in the southeastern corner of Venezuela's Canaima National Park forming the highest peak of Guyana's Highland Range. The highest point in Guyana and the highest point of the Brazilian state of Roraima