Twin Lagoon in Coron consists of two saltwater lagoons divided by a limestone wall. Snorkellers can access the inner lagoon by swimming through a small underwater archway during low tide. The site features a distinct halocline where fresh and salt water mix, creating a visible thermocline with cooler surface water and warmer saltwater below. Depths range from 10 to 35 metres, with mild currents and visibility typically around 15 metres. Access is by boat only. Hazards include jellyfish, sea urchins, sharp coral, stonefish, and the thermocline. This site is suitable for beginners and offers a unique experience of transitioning between two distinct lagoon environments.

Baracuda Wall is a reef wall in Coron, Philippines, that drops from the surface to a maximum depth of 35 metres. The site features hard and soft corals along the drop-off and is characterised by mild currents and warm water temperatures ranging from 28 to 30 degrees Celsius. While the wall reaches significant depths, the shallower sections are suitable for beginners. Access to this site is by boat only. Divers should remain alert for heavy boat traffic when surfacing and monitor their depth gauge closely throughout the dive.

Secret Spot in Coron, Philippines, is a wreck and artificial reef site situated at a consistent depth of 11 metres. Access to this location is by boat only. Divers should be prepared for moderate currents and visibility that fluctuates between 5 and 20 metres. Hazards at this site include potential entanglement, sharp coral, and low visibility. While specific marine life has not been confirmed at this exact location, species recorded around this area include various wrasses, butterflyfish, nudibranchs, and great barracuda. The site is suitable for beginners, though conditions can vary.

Barracuda Lake is a unique dive site located within a landlocked karst formation on Coron Island. The topography features dramatic walls and rocky surfaces that extend from 10 to 42 metres, with an average depth of 20 metres. Divers experience a distinct thermocline as they descend through the water column. Conditions are generally calm with no current and visibility ranging from 15 to 30 metres. Access is by boat, and divers should remain vigilant regarding boat traffic when surfacing. While suitable for beginners, the deeper sections of the lake require careful depth monitoring and are best explored with a guide.

Kayangan Lake in Coron is a brackish water site consisting of 70% fresh and 30% salt water. The topography is defined by dramatic underwater limestone pinnacles that create a moonscape appearance. Divers and snorkellers can explore depths ranging from the surface to 40 metres, with an average depth of 10 metres. The site features thermoclines and visibility that varies between 10 and 40 metres. Access is by boat, located 1000 metres from the shore. Due to the presence of strong currents, deep water, and overhead environments, visitors should exercise caution. The site is suitable for beginners, though conditions can vary.

Dimanglet is a reef site in Coron, Philippines, featuring a shallow sandy bottom near the beach that transitions into a reef slope. Suitable for beginners, the site offers depths ranging from 5 to 20 metres with an average of 15 metres. Divers can expect mild currents and visibility between 3 and 10 metres. Water temperatures remain consistent, typically between 28 and 30C. The topography includes a reef slope that extends around the island. Be aware of sharp coral when navigating the area. Species recorded around this area include wrasses, various nudibranchs, lionfish, and anemonefish.

Seven Islands is a boat-access reef site in Coron, Philippines, offering a depth range of 2 to 24 metres. The site features mild currents and water temperatures between 28 and 31 degrees Celsius. Visibility is variable, ranging from 5 to 30 metres. The shallow sections are suitable for beginner divers, while the deeper areas provide variety for more experienced visitors. Night diving is available at this location. Divers should maintain good buoyancy control to avoid contact with sharp coral and rocks present across the reef, which can cause injury and damage the habitat.

Siete Pecados is a marine park in Coron, Philippines, composed of seven small limestone islets. This site offers both drift diving and snorkelling opportunities at depths ranging from 2 to 22 metres, with an average depth of 12 metres. Access is by boat, as the site is located 300 metres from the shore. Divers and snorkellers should be aware of moderate currents and boat traffic in the area. Visibility varies significantly, ranging from 5 to 30 metres. The water temperature remains warm throughout the year, typically between 28 and 31 degrees Celsius. The site is suitable for beginners.