The “Coral Reef Habitat Map” project is an initiative of the Ministry of the Environment, Japan in collaboration with the ReefBase project. The map was developed to provide a useful tool to conserve and manage coral reefs and related ecosystems in the Asian and Oceanian regions (i.e., North East Asia, South East Asia, Micronesia and Melanesia). This satellite based GIS　map shows the distribution of coral reefs and related ecosystems in these regions. The latest distribution of live corals, seaweed/seagrass and other benthic features have been analyzed using the satellite images and are now available to the general public via the Internet. The data can be viewed at the Coral Reef Habitat Map website (http://coralmap.coremoc.go.jp/sangomap_eng/) and will also be available on ReefBase soon.