It is a natural cave in the form similar to an umbrella (payung: Indonesian) with the height / size of about 3 x 10 meter. Inside the cave is spring which is bicarbonate water that emerges in the surface and formed sintered carbonate deposit (travertin/CaCO3). Bicarbonate water is formed in the rim and shallow area of a geothermal system. This cave occasionally serves as meditation location for some local community.
