India’s coastline stretches for more than 7,500 km. It comprises coral reefs, mangroves, and tropical seas which also supports spectacular marine life. Among its lesser-known inhabitants are sea snakes. These are highly adapted reptiles which spend most or nearly all of their lives in the ocean. Among these some are harmless but then there are some which possess potent venom. From time-to-time, we keep seeing or reading news of sea snakes being spotted at popular Indian beaches. So it is important for travellers to know about them.