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Koh Dor

Koh Dor is a solid afternoon stop in the Similans, particularly if you’re keen on seeing blacktip reef sharks. We’ve found the best chance to spot them is actually on snorkel, right around lunchtime, on the west side of the island; they can be a bit shy on scuba, but a fleeting glimpse isn’t out of the question. Underwater, it’s a good mix of hard corals like those big Porites and Diploastrea Heliopora, alongside soft corals, sea whips, and some impressive barrel sponges. It’s a pleasant, easy dive, probably best for those who appreciate healthy reef structure and don’t mind a quiet afternoon seeking out elusive sharks.