The atoll consists of about 250 islands, islets and sandbars comprising a total land area of about 170 km² and there are approximately 100 narrow passages, called "hoa", in the reef.
The atoll consists of about 250 islands, islets and sandbars. The atoll is comprising a total land area of about 170 km². There are approximately 100 narrow passages in the reef. Approximately 100 narrow passages are called "hoa".