1. They are all of coral formation , and in the western Indian Ocean. 2. The islands are mostly low-lying coral formations , the highest elevation being 13 metres. 3. The sea received its name because of its numerous coral formations . 4. Suitable for diving, with coral formations and the associated marine fauna. 5. The best part is the corner where the coral formations are at their densest. 6. The nightlife witnessed, of the underwater sea, is full of coral formations and marine creatures. 7. Sunlight, filtered down from the ocean's surface, hits each parrotfish and ray and coral formation . 8. Ootu Peninsula is of coral formation , but attached to the main volcanic island, thus a peninsula. 9. There are several other beaches, Sosua Beach, which is a crescent-shaped bay protected by coral formations . 10. In some places, " caprock " ( the eroded surface of coral formations ) covers the ground.
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