Cerf Island measures 1.7 kilometres (1.1 mi) long and 1 kilometre (0.62 mi) wide, it reaches a height of 108 metres (354 ft). The island is surrounded by a coral reef and the geology is granitic. it is part of the Ste Anne Marine National Park.
Cerf island has a small art gallery, Anglican chapel, Catholic chapel, and a cemetery. A high standard of accommodation is available in 3 hotel establishments (Cerf Island Resort, Fairy Tern Chalets, and L’Habitation) currently on the island. There is also a guest lodge, 3 restaurants (Kapok Tree), a spa, a small shop, and a beach bar. There are no paved roads or local infrastructure on the island; travel to-and-from the island is by boat and by helicopter which lands at the helipad.
There are no roads or local infrastructure on Cerf. Telephone service and electricity is provided from the mainland Mahe. Diving centers are plentiful on Mahe and snorkeling equipment is available for hire on the hotels of Cerf Island.
Due to Cerf Island’s location, in a National Marine Park, the waters around Cerf Island prove a spectacular sight. The deepest point of the Marine Park is 250 metres (820 ft) and the Park offers exceptional marine life, with more than 150 species of reef fish, crabs, sea urchins, starfish, octopuses and many more. Cerf Island is home to the fruit bat and giant tortoises. On the north side of the island are superb coral reefs, where sea turtles swim with clown fish.
