Mount Apo the mountain to be sacred ground and a place of worship. A number of genealogies of Lumad leaders in South Central Mindanao trace their roots to Mount Apo. For the Lumads, the term "Apo" was coined from the name of their great grandparent "Apo Sandawawa". At , Mount Apo is the highest mountain & volcano in the Philippines. It is one of the country's most popular climbing destinations. Several trails lead to the summit, coming from North Cotabato and Davao provinces. Arguably the easiest route to the National Park is through Kidapawan with an average hike taking 3–4 days roundtrip.
Apo Reef protection and conservation work at the park, stays in the protected area on weekly shifts. The largest is Apo Island at with mangroves and beach vegetation. The reef surrounding the island extends to in places. Outside the lagoonal mangroves in the eastern and southern sides of Apo Island, the soil is sandy-to-sandy loam that is less in silt and clay particles. On the other hand, the lagoonal mangroves have a sandy loam to clay loam soil, underlain by decomposed plant residues or coarse materials. Apo Island is separated from Apo Reef by a narrow, deep channel. The island is about