Palaui Island lies off the northwestern part of a large promontory in San Vicente, in the municipality of Santa Ana, Cagayan province.

[1] Palaui Island was declared as a National Marine Reserve on August 28, 1994 encompassing an area of 7,145 hectares (17,660 acres).

[3] The waters around the island boast of 21 commercial species of fishes with about 50 hectares (120 acres) of undisturbed corals.

[7] In January 2019, the island won the Association of Southeast Asian Nations (ASEAN) Community-Based Tourism Award for 2019-2021 "for promoting sustainable tourism through the efforts of the island’s environmental group, the Palaui Environmental Protectors Association (PEPA)".

[8] The Port of San Vicente in the Cagayan mainland serves residents and tourist going to or departing from Palaui Island.