A more adventurous destination than the famous Suan Hin Pha Ngam, the walking path through 'Heavenly Garden' requires a little climbing over rocks and through some caves and it crosses several metal walkways. At the end there's a great scenic viewpoint and a forest where monkeys are sometimes seen. The guided trip takes about 90 minutes and you should bring a torch, though you can get through without one.
It's always open, but sometimes the guides step out of the office; so if no one is around when you arrive, ask someone in the village to call a guide. The trail is not appropriate for small children, though shorter, easier walks can be done.