Coron Island

Coron Island is situated between Busuanga and Culion islands, faces the Sulu Sea and forms the eastern side of Coron Bay. It is about 20 kilometres (12 mi) long from north to south, and 9 kilometres (5.6 mi) at its widest point.

Part of the North Palawan Block, Coron Island is distinguished by its Late Triassic Coron Limestone.

The island contains 15 lakes within its rugged terrain, of which three have underground connections to the sea. Mangroves are found along some coastal areas.

The areas around some of the shipwrecks have rock formations that provide snorkeling opportunities, with underwater visibility of up to 80 feet (24 m). The water is often calm.

Coron is known for wreck diving. Its world-renowned wreck dive sites are found at depths ranging from 6 metres (20 ft) to 46 metres (151 ft). The ten shipwreck diving sites in Coron Bay include the Akitsushima, Irako, Kogyo Maru, Kyokuzan Maru, Okikawa Maru, Olympia Maru, SS.Morazan, Terukaze Maru, and the 'Lusong Gunboat.

Dive sites around Coron include shipwreck dives, and reefs. Barracuda Lake has water temperatures that increases during descent to more than 38 °C (100 °F) producing thermoclines. Its mixture of salt and fresh water creates holocline where the two layers meet.

"Günter's Cave", also known as Cathedral Cave, has a hole in the cave ceiling through which, at a specific time of day, a beam of sunlight illuminates the inside. It is situated in the south east, It is possible to surface in the cave because fresh air enters through the hole. The cave is named after Günther Bernert, who was part of the first dive group to explore it after hearing about its existence from local fishermen.

Ecotourism has surpassed diving as a major draw to Coron Island. With domestic tourism on the rise, Coron Island is home to some notable sights:

• Kayangan Lake
• Luluyuan "Barracuda" Lake
• Twin Lagoon