Situated at an altitude of 49 m, it is a small and rounded island. The significance of the place is a 0.6 m high rock, which is said to be a useful mark at all stages of the tide. It is about 0.5 km south-east of the island.

Pluto Island is renowned for coral reefs and beaches. The abundant colorful living colonies of coral and magnificent marine life are breathtaking views. The Hobday Island is located to the east of Pluto Island.

The island is accessible from Port Blair by ferries.