Nalusuan Island Marine Sanctuary: Reefs and Walls of Mactan

Diving Nalusuan brings you into a protected marine sanctuary, characterized by shallow reef platforms leading to more dramatic wall dives. This site is part of a larger dive safari itinerary in the Mactan and Cebu area, often paired with nearby Hilutugan Island, providing a comprehensive day of diving. The focus here is on a healthy, established ecosystem that supports a wide diversity of fish and invertebrate life.

The topography along Nalusuan’s coasts offers multiple distinct dive profiles. You can often begin on a sloping reef that gradually deepens, transitioning into a vibrant vertical wall. These walls are sculpted with overhangs and crevices, providing shelter and hunting grounds for smaller species. While the exact contours vary with your entry point, the general outline is consistent: a steady descent alongside a reef structure that eventually drops off, revealing the wall.

As you move along the reef and wall, expect to encounter substantial schools of trevally, moving in synchronized patterns. Keep an eye out for green turtles (Chelonia mydas) or hawksbill turtles (Eretmochelys imbricata) cruising past or resting on ledges. The intricate reef structure also hides smaller, more delicate life, including various species of shrimp and nudibranchs, often found by careful observation of the corals and rubble.

The waters around Nalusuan generally provide good visibility, allowing for clear views of the extensive reef systems and the marine activity present. While specifics can vary based on weather and plankton blooms, the consistent health of the sanctuary helps maintain clear conditions. The dive is usually a drift, allowing you to traverse different sections of the reef and wall without excessive exertion, as the current generally dictates the pace.