Mount Apo Mount Apo Mount Apo () and () is a large solfataric, potentially active stratovolcano on the island of Mindanao, Philippines. With an elevation of above sea level, it is the highest mountain in the Philippine Archipelago and is located between Davao City and Davao del Sur province in Region XI and Cotabato province in Region XII. The peak overlooks Davao City to the northeast, Digos City to the southeast, and Kidapawan City to the west. The first two attempts to reach Mt. Apo’s summit ended in failure: that of Jose Oyanguren (1852) and Señor Real (1870). The first recorded successful
Apo Reef and is about in depth. Likewise, reef limestone and coralline sand on the east and southeastern sides dominantly underlie the area. The main geographical feature of Apo Reef is submerged, but three islands mark it on the surface: the Apo Island, Apo Menor (locally known as "Binangaan") and Cayos del Bajo ("Keys of the bank", locally known as "Tinangkapan"). The islands are uninhabited. Since the declaration of “no-take-zone” policy at Apo Reef Natural Park in 2007, only protected area personnel and members of the Task Force MARLEN (Marine and Apo Reef Law Enforcement for Nature), who are task to implement