Firstly, the best thing about my experience with this cave was the swimming. In 42C heat, it was very nice jumping into the cool water and swimming around for an hour or so. I was lucky that, when I arrived, there were no other tourists around so I had the place to myself. You can walk around the water and go to the back of the cave where you will see a large cavern. There were signs attached to the trees in the carpark saying 5,000 Kip to park your bike but there was no one there taking any payment.