There are three key dive sites to be found here: Chumphon Pinnacle, Hin Daeng, and Richelieu Rock. The latter two sites are found on the west coast of Indonesia; due to the monsoon season’s ability to stir up the waters, dive boats only head to these two location from November to May each year. However, raja ampat budget liveaboard, located on the east coast, is pretty accessible throughout the entire year.
As you can see, there are a variety of diving sites you can find throughout Asia, varying in terms of their landscape and their biodiversity. Most are accessible throughout the entire year, with a few notable exceptions.