Sikkim is a large state which borders Tibet.
A permit is necessary to visit this area.
There are four famous caves, these are:
Laringvigphu (Old Cave of God's Hill) in the north, is considered as the most holy and can be reached in three days from Tashiding.
Kadosangphu (Cave of the Fairies) in the south, is at the Reshi hot springs on the Jorethang - Gyalsing highway.
It is about ten minutes from the highway across the river Rangit by a pedestrian suspension bridge.
Pephu (Secret Cave) in the east, this is near Sangmoo, which is situated 5km from Rabongla on the highway between Singtam and Rabongla.
One has to walk for half an hour downhill from Sangmoo to reach the cave, which varies in height from 2 to 30 meters.
The cave is said to extend beneath both, the Tendong and Maenam hilltops.
Dechhenphu (The Cave of Happiness) in the west, is equally inaccessible and lies near Zongri