the Muang On Cave. It takes about 1 hour to explore the beautiful interior of the cave on two levels with a huge stalagmite and a 10 meters long reclining Buddha. There is even a fossilised dinosaur skeleton inside waiting to be discovered!We continue on to the Sankamphaeng hot spring for a natural bathing experience. The water is so hot that you can boil an egg. Soak your feet in rich mineral water or swim in the pool. We stayed at the hot spring 1-2 hours, then have lunch after lunch visit the Museum of Elephant wood carvings.