Rameshwaram has been an important tourist spot due to its religious significance. It is on Pamban Island. Rameshwaram is one of the 12 Jyotirling and one of the four divine sites (char dham) along with Badrinath, Puri, and Dwarka. Rameshwaram has a lot of significance in Hindu mythology. Don’t get misled by the name of Ramanathaswamy Temple (Which is an important place in Rameshwaram), Its a temple of Lord Shiva, not Lord Rama.
As per mythology, Ram had prayed here to Shiva in order for forgiveness for killing a Brahmin (Ravana). According to legends Ram had sent Hanuman to bring a Linga from the Himalayas to worship but Hanuman was delayed so in the meantime Sita had built a small Linga from the beaches near the temple. Thus this temple has two Lingas.
The jyotirlinga is the supreme partless reality, out of which Shiva partly appears. The jyothirlinga shrines, thus are places where Shiva appeared as a fiery column of light.
Pamban bridge connect this island to India. Rameshwaram is the closest distance to Srilanka. According to Mythology from Setu Karai the place from where Lord Rama started construction of the bridge to go to Srilanka to get her wife back from Ravana
According to historians, this temple was built around 12 – 13 AD but major constructions which can be seen as the present form of the temple was built around 17th Century. The temple has Two Gouprams one to the East and the other to the West. This temple is famous for its longest temple corridor with sandstone pillars.
There are 22 Kunds inside the temple. So Everyone has to take bath in all these kunds before entering inside the main Temple. So first Take bath in all these kunds and make yourself dry or change clothes and then enter to main Temple.
Apart from the temples, there is a nice beach name DhanushKodi for the people who just want to go try to go there for Sunrise and enjoy beautiful sunrise. This place was merged into the sea during TSunami but now is open.
NASA satellite photo: Rameswaram on top, Sri Lanka at the bottom of the photo.