We went to the water cave as part of a day tour tubing and kayaking. After a short walk we came to the cave where everyone was given a tube and a head torch also life jacket for those who can't swim. The cave is about 500 metres long and you pull yourself along by rope. At times you can just lie back and float and watch the stalactites above you by torch light. We were lucky as it wasn't that crowded and could just float on the way back and relax. No one was screaming thankfully. After this we did some kayaking on the Nam Song which was also lots of fun stopping at different spots along the river