Tinalisayan Islet and Sandbar is a reef site in the Western Visayas, Philippines, characterised by a long, winding sandbar and a shallow lagoon. Located 1500 metres from shore, the site requires boat access. Divers and snorkellers can explore depths ranging from 1 to 10 metres, with an average depth of 5 metres. Conditions are generally mild with visibility between 5 and 15 metres. Water temperatures remain warm throughout the year, fluctuating between 27C and 30C. The site is suitable for beginners, though visitors should be aware of sea urchins and sharp coral in the area. Typical dives last approximately 60 minutes.

Sombrero Island in the Western Visayas is a hat-shaped island featuring a wall dive with large soft corals and gorgonians. The site offers a variety of topography including reef, wall, drop-off, and cavern formations. Divers can expect depths ranging from 8 to 30 metres, with an average depth of 20 metres. This site is suitable for intermediate divers and requires boat access due to its distance from the shore. Conditions vary, with moderate currents and visibility typically between 10 and 30 metres. The habitat supports a diverse range of reef fish and invertebrates. Hazards include boat traffic, deep water, and strong currents.