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 Apo is said to be named after a nobleman named Apong, who was killed while mediating the battle between two suitors of his daughter Saribu. Apo is various local languages mean "grandfather", "master", "grandson", and "wise elder". On May 9, 1936, Mount Apo was declared a national park with "Proclamation No. 59" by President Manuel L. Quezon, followed by "Proclamation No. 35" of May 8, 1966, then "Proclamation No. 882" of September 24, 1996. On February 3, 2004, the approval of "Republic Act No. 9237" established Mount Apo as a protected area under the category of "natural park" with an area