The area’s underwater environment is made up of shallow limestone reefs, more than 300 seamounts and pinnacles, and a massive deep sea trench. There are also rumors of aircraft and shipwrecks but none of these have yet been described.
Most of the islands include a shallow shelf or lagoon that falls away into the blue. Of the sites described around Diego Garcia, most are approximately 100 feet (30 meters) at the maximum depth. Both boat and shore dives are possible from most locations.
While not much is known about diving in the British Indian Ocean Territory, those who have had the chance to dive these spectacular waters often remark that these are the clearest and most diverse waters they have ever seen.
Divers in the area can expect pristine conditions. Water temperatures are warm year-round and allow for diving without a wetsuit.
December to February is considered wet season with west-northwesterly winds while June through September is dry season with south-easterly breezes. Winds are light throughout the year.
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