It's not worth your 400 baht 100%, I don 't recommend it .
There are a lot of local Thais who lie around and eat food and litter right there... while you walk to the waterfall, you see such a picture everywhere.
The waterfall is open until 4:30 p.m. the price is 400 baht for 1 person, the passage is complete nonsense, well, a maximum of 100 ... I expected more from the waterfall , in fact it is very small and the water jet is small 🥹
There is nothing to see, especially for 400 Baht, dirt, garbage, and so on.... In the dining room, which is at the beginning of the park, they feed for 2 out of 5! There are no gibbons!