This park is definitely worth a visit. Easy to reach from Surat Thani on scenic, decent roads, suitable for motorbike or small sedan. Entry price is 30b for the car and 200b per foreign visitor. There was a group of school kids there the day I visited, but they were not at the waterfall area, and thus there were no other visitors during the 2 hours I spent inside. Toilets at the entry were clean, the ones by the waterfalls were more rustic. Trail is clearly marked and well maintained up until the falls known as Hnan Toey, after which it runs along the base of a cliff until it eventually fades away. The sign at the visitor center says that the highest waterfall requires a "dad fa" with knowledge of the forest, which I assumed to mean you must have a guide, who would lead you beyond this point. I felt the entry fee was reasonable, based on the condition of the trails and the signposts. I did not swim in the pools, although it was tempting. The previous day I got covered with blood sucking leeches at a different park, and I wasn't ready for a repeat.

Great place to camp for a night if you fancy exploring 8 tiers of waterfall. Staff are friendly, showers available and hot food until 4pm.