Baratang Island is a large undulating island of approximately 80 sq kms located due west from Havelock Island. It lies in a creek between the two large islands of South Andaman and Middle Andaman, and forms a 'bridge' between the two. At Baratang, much of the landmass is under cultivation; however patches of denuded forest and primary forest do exist.
The island is geologically significant and boasts natural marvels - mud volcanoes and limestone caves. Baratang presents wonderful short trekking opportunities through the Ranchi village off the South Creek, taking detours into a number of limestone caves. The limestone caves and mud volcanoes bring many a visitor to Baratang.
Limstone caves is located at Nayadera, Baratang island. One may get glimpse of aboriginal tribes along the route. The lime caves, full of splendid stalagmites, stalactites and pillar rocks, can be accessed by a 40-minute boat ride through the creeks from the Nilambur Jetty. And about 15-minute trek further through village and forest. It gives an immense sense of adventure to the tourist.
The rare phenomenon of a mud volcano can be seen at Baratang. The journey to the hillock having mud volcano involves trekking (for 10 minutes) through green forest and marshy areas. The mud volcano last erupted in 2003, even today one can see the debris was spread over 250 sq m on the top of the hillock. Mud volcanoes are vents in the earth which emits gas and mud. This is a rare phenomenon and is found in only select places around the globe. In our country, Andamans is the only place where such volcanoes are found.