The Maldives archipelago is comprised of 26 naturally occurring atolls forming an 860km long chain which forms a double-chain of up to 130km in width. The atolls found here are among the largest in the world with Thiladhunmathee-Miladhunmadulu (3,680 km²) and Huvadhoo (3,200 km²) being the worlds largest and second largest, respectively.

Within these atolls, which were formed by reefs, are islands and lagoons. The islands are characterised by palm fringed islands with white sandy beaches, turquoise lagoons and coral reefs packed with abundant varieties of marine flora and fauna.

Of the many atolls in the archipelago, Felidhoo measures 54km in length and is edged by around 50 major reef sections, each with a shallow lagoon and sometimes a single small island. The western half of the main lagoon contains numerous faros reef formations.

North Male atoll is home to the Maldives capital, Male. The outer rim of the atoll consists of around 40 major reefs sections that enclose a deep lagoon. The largest of the outer reefs, measuring around 13km is Dhiffushi Falhu.

South Nilandhoo atoll’s outer perimeter is composed of 15 major reefs — including the 23km long Kudahuvadhoo reef. Its lagoon contains many coral heads and faros reefs.