dear dessa....
Adam's Bridge, also known as Rama's Bridge or Ram Setu in hindi,is a chain of limestone shoals, between the islands of Mannar, near northwestern Sri Lanka, and Rameswaram, off the southeastern coast of Tamil Nadu, India. Geological evidence indicates that this bridge is a former land connection between India and Sri Lanka
The bridge is 30 miles (48 km) long. 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
Government of India approved a multi-million dollar Sethusamudram Shipping Canal Project that aims to create a ship channel across. Various organizations have opposed the project based on religious, economic and environmental grounds and have sought the implementation of any other alternative alignments.

Hindu legend identifies it with the bridge built by the Vanara sena (army) of Rama , which he used to reach Sri Lanka and rescue his wife Sita from the Rakshasa king, Ravana, as stated in the Sanskrit epic Ramayana. It is called as Adam's Bridge in the west and the name probably comes from an Islamic legend, according to which Adam used the bridge to reach Adam's Peak in Sri Lanka, where he stood repentant on one foot for 1,000 years, leaving a large hollow mark resembling a footprint. Both the peak and the bridge are named after this legend.

Maps prepared by a Dutch cartographer in 1747, available at the Tanjore Saraswathi Mahal Library shows this area as Ramancoil, a colloquial form of the Tamil Raman Kovil (Rama's Temple) Another map of Mogul India prepared by J. Rennel in 1788 retrieved from the same library called this area the area of the Rama Temple [8] Many other maps in Schwartzberg's historical atlas and other sources call this area with various names like Koti, Sethubandha and Sethubandha Rameswaram along with others. Valmiki Ramayan called the bridge built by Lord Rama Setu Bandhanam in verse 2-22-76.Ramasetu and neighbouring areas like Rameswaram Dhanushkodi, Devipattinam and Thirupullani are mentioned in the context of various legends in Ramayana also.

i hope the above information is enough otherwise it can become very large.

Thank you Deepdec, I appreciate the sharing, I also looked up some things from what you have shared, and find the area photos to be amazing, I can well understand why enviromentalists would want to protect the area, it is natural wonder, or seems to be so to me.

I often wonder how much of our legends are based on some obscure facts, and think something like this has to be a place of wonderfully positive feeling.