Goa Karangasari

5 km (3 mi.) south-east of Sampalan the cave of Goa Karangasari contains an underground freshwater lake. The entrance to the cave system is not easy to find, being only 2.50 m (8 ft) across. It consists of a large and imposing chamber with a number of small caves opening off it. A powerful electric torch is essential; it can be hired from one of the locals who cluster outside the cave offering their services as guides. It is possible to continue through the cave system to another exit in a steep rock face.