The crystal blue waters surrounding Marshal Island boast over 800 species of fish and 160 species of coral. The most popular dive sites on the Marshall Islands are around Majuro. Home to the largest shark sanctuary, Marshal Island also offers drop-off walls, coral pinnacles, channels and wrecks in abudance for divers to enjoy.
Dive around world-famous Bikini Atoll: an American atomic test site, the area was used as a ship graveyard after WWII. The lagoon within the atoll contains abundant marine life. Some of the best diving in all of the Marshall Islands can be experienced in this surreal site.
A couple of other great sites are Rongelap Atoll and Arno Atoll. Rongelap is recently reopened to divers, offering up awesome drop-offs and immaculate reefs.
The best time to dive the Marshal Islands is between May-October. Sea temperatures never fall below 27-30°C/80-86°F so a 3mm wetsuit would be suffice for most divers all year.