Among the three islands that comprise of the Apo Reef National Park, the Apo Menor or Binangaan Island is marked of limestone rock with few vegetation and Cayos del Bajo Island is formed of coralline rock with no vegetation.

Only the Apo Island, which is also the biggest island of the Reef, features a shallow lagoon surrounded by a verdant mangrove forest. With all the islands taken together, the Apo Reef National Park can be regarded as a paradise on Earth.

There are about forty six species of terrestrial flora in the National Park. The earlier inhabitants introduced the tamarind (Tamarindus indica), ipil-ipil (Laucaena glauca), agave or maguey (Agave Americana), coconut (Cocos nucifera) and malunggay (Moringa oleifera) to the islands.

About forty seven species of birds have been identified at the Apo Reef National Park, including seventeen migratory birds. Some of the rare birds such as the Nicobar Pigeon (Caloenas nicobarica) have been spotted in this region.

Among the reptiles and mammals recorded at the Apo Reef National Park, you’ll come across the rare Green Turtles (Chelonia mydas), Hawksbill Turtles (Eretmochelys imbricata), Bottlenose Dolphins (Tursiops truncatus), Spinner Dolphins (Stenella longirostris), Short-Finned Pilot Whale (Globicephala macrorhynchus), whale sharks (Rhincodon typus) and Risso's Dolphins (Grampus griseus).
This is a perfect haven for wildlife enthusiasts.