There are 2 Na muang waterfalls:
The first one is the largest and you can swim underneath it which is very refreshing and cooling on a hot day.
It has a fall of about 79 metres so it is quite a big drop.
The second you have to climb up to along a very steep pathway.
There are little statues all the way up like the one in the second photo and at the top there is a great viewing or (recovering) platform with a great view.