Nalusuan Island Marine Sanctuary

Nalusuan is a natural island resort in the Cebu Strait, the Philippines, and one of the islands comprising the Olango Island Group. The island, which measures close to a hectare, is situated between Mactan Island and the Province of Bohol. Originally a sand bar, it was reclaimed to allow the construction of the Nalusuan Island Resort, which occupies the entire island.

The island was originally and locally known as "kalusuan" meaning "a place of penises" in Cebuano. The local fishermen named it as such because the waters surrounding the island is teeming with sea cucumbers, which looked like the male genitalia.The island is administratively within the jurisdiction of the town of Cordova and specifically in the barangay of Gilutongan.