Ulong is a major island and channel of western Palau. It is sometimes called Aulong and originally written Oroolong in English. Ulong is regarded by many as one of the best drift dives in the world.

Geography

Ngerumekaol Pass, also known as Ulong Channel, partially cuts through the reef near the Island. The channel stretches about 500 m, with an average width of 33 m and leads into a coral reef lagoon. There are sharks within the currents

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