30 km north of Baghmara and 132 km from Tura, Siju is famous for Dobakkol or the bat cave with impressive stalagmites and stalactites. It is one of the longest cave in the Indian Sub-continent and contains some of the finest river passages to be found anywhere in the world. The magnificent limestone rock formation inside specially named princess Di’s chamber by the excavator will fill any visitor with awe. Close by on the other side of Simsang River Siju Bird Sanctuary is the home for many rare and protected bird and other wildlife. The migratory Siberian Ducks also come here during winter month. At the entrance to this Bird Sanctuary after a steep climb of nearly 1 km there is a stretch of fantastic rock formations that will take your breath away.