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Koh Rong, Cambodia

A small but popular island off Cambodia’s southern coast, Koh Rong has become a backpacker’s haven, with its scattering of hotels, beautiful beaches, and clear water. Being fairly remote, the island has little running water or electricity and the mimimal light pollution creates ideal conditions for bioluminescent plankton to appear. Select companies and hotels offer boat trips to see the plankton, but the best way to experience it is to simply go swimming when there’s a clear sky and new moon.

Koh Rong, Cambodia