Apo Reef in 1980. This was followed with the local government of Sablayan declaring the reef a special "Tourism Zone and Marine Reserve" three years later. In 1996, the entire reef was declared a protected natural park by then-president Fidel Ramos. In 2006, the Protected Areas and Wildlife Bureau of the Philippine Department of Environment and Natural Resources submitted the reef to the UNESCO World Heritage Centre for consideration as a World Heritage Site. Following a survey by the local chapter of the World Wide Fund for Nature, fishing within the reef was banned by the Philippine government in September 2007. The
Apo Island species of coral can be found here, from tiny bubble corals to huge gorgonian sea fans and brain corals. Visitors and tourists pay a fee to enter Apo Island and to snorkel or dive in the marine sanctuary there. These fees are used to keep the sanctuary clean and in good condition. In 2003, Chicago's Shedd Aquarium opened a Wild Reef exhibit based on Apo Island's surrounding reef and marine sanctuary. In 2008, Sport Diver Magazine listed Apo Island as one of the top 100 diving spots in the world. As of 2017, the fish sanctuary, at the southeastern part