Adam's Bridge (Rama Setu), Sri Lanka

Adam's Bridge, also known as Rama Setu, is a chain of sandbanks and shoals stretching about 48 km across the shallow sea between Mannar Island in Sri Lanka and Rameswaram in India.

For Hindus, this is the bridge built by Rama's army of monkeys so that they could cross to Lanka to rescue Sita, as told in the Ramayana. Geologists generally regard it as a natural formation of sand and coral. Either way, it's a remarkable sight, with narrow strips of pale sand running into turquoise water.

How to see it

• Talaimannar — the tip of Mannar Island is the closest you can reach by road. A beach and an old pier look out towards the first sandbanks.
• By boat — boat trips may run from Mannar in season, when the sea is calm. Availability and permission change, so ask locally first.
• From the air — the full chain is best seen from aircraft or satellite photos.

Things to know

• This is a sensitive border area with a naval presence. Follow all signs and instructions, and don't try to walk out along the sandbanks.
• The currents here are strong and the water is shallow and unpredictable.
• Check current access rules before you make a long detour.
• Facilities at Talaimannar are basic, so bring water and sun protection.

When to visit

January to September avoids the heaviest northern rain. Flamingos and other migrant birds are often seen on the lagoons around Mannar from roughly November to March.

Getting there

Mannar town is about 2 hours from Anuradhapura by road, and Talaimannar is around 45 minutes further, across the island. While you're here, see Mannar's Dutch fort and its giant baobab tree. Our Jaffna and the north itinerary can be extended to include it.