Adam's Bridge also known as Rama's Bridge or Rama Setu is a chain of limestone shoals, between the islands of Rameswaram, off the southeastern coast of Tamil Nadu, India, and Mannar, near northwestern Sri Lanka. Geological evidence indicates that this bridge is a former land connection between India and Sri Lanka.

The bridge is 18 miles (30 km) long[3] and separates the Gulf of Mannar (southwest) from the Palk Strait (northeast). Some of the sandbanks are dry and the sea in the area is very shallow, being only 3 ft to 30 ft (1 m to 10 m) deep in places, which hinders navigation.[2][4][5] It was reportedly passable on foot up to the 15th century until storms deepened the channel: temple records seem to say that Rama’s Bridge was complete above sea level until it broke in a cyclone in 1480 CE.

In Hinduism it is said that the bridge was created by Lord Hanuman along with his friends and Lord Rama and Lakshman to reach Lanka in order to find Rama's wife [Sita] who was kidnapped by the evil Ravana, thus, most Hindu's and Indians claim Adams Bridge to be called Ram Setu (Rama's Bridge) and that it was made by man.[citation needed] A 2007 government publication from the National Remote Sensing Agency said that the structure "may be man-made", contradicting the report from the Archaeological Survey of India which found no evidence for it being man-made.[54][55] In a 2008 court case a spokesman for the government stated "So where is the Setu? We are not destroying any bridge. There is no bridge. It was not a man-made structure. It may be a superman-made structure, but the same superman had destroyed it. That is why for centuries nobody mentioned anything about it. It (Ram Setu) has become an object of worship only recently,"