Mactan is a coral island off the coast of Cebu. At 62 square kilometers in area (39 square miles in area), the diving infrastructure is well developed and tourists can be scuba diving within an hour after flying in. The east coast offers the best variety of sites along its walls. The Hilutangan Channel, which separates it from Olango Island, is extremely deep and offers more opportunity to see more aquatic life.
Currents can be strong, so not every dive is suitable for beginners. As sites are numerous and in some instances very similar, they are grouped into 3 sections, one of which is the separate Olango Island.
Mactan is a favorite jumping-off point for excursions further afield around the Visayas region.