[3] 225 hectares (560 acres) of waters surrounding it have also been declared a marine protected area known as the Alibijaban Fish Sanctuary.

[4] Alibijaban is located in the southwestern end of Ragay Gulf approximately 3.6 kilometres (2.2 mi) from the mainland of Bondoc Peninsula.

It hosts at least 22 mangrove species and 14 species of birds, including the Tabon scrubfowl, white-collared kingfisher, jungle crow, black-naped oriole, Philippine collared dove, Asian glossy starling, chestnut munia, Philippine pied fantail, common emerald dove, black-crowned night heron, common snipe.

Its adjacent waters are visited by whale sharks, manta rays, and pawikans (marine turtles).

It's fine white sand beach and mangrove forest are few of the reasons why backpackers visit the island.