<ul>Ramayana speaks about a bridge over the ocean connecting India with Sri Lanka called “Setubandhanam”. In reality, it was reported that a 30 km long bridge, passable on foot, separated the Gulf of Mannar from the Palk Strait connecting India and Sri Lanka was there. It was destroyed by a cyclone in 1480 BC. The remnants of that bridge comprising 103 small patch reefs lying in a linear pattern with reef crest, sand cays, and intermittent deep channels can be seen. Today it is called Adam’s Bridge.