Crystal Bay Dive Site is a reef and drift dive site in the Flores Sea, Indonesia. It is reached by boat and rated for beginners, though current is variable and strong current is a hazard here. Depth starts around 5 to 6 metres. The site is described as one of the more reliable places in the world to encounter ocean sunfish. Ocean sunfish are seen here seasonally, and the best months are July to October. Blacktip reef sharks, giant moray eels, great barracuda, green and hawksbill turtles, nudibranchs and spinner dolphins are occasionally seen.