The Pranburi Forest Park is free to visit and has a wooden walkway where you can spot many different animals, including weirdly coloured crabs. The wooden walkway is approximately one kilometre long and during the walk, you will pass by local boatmen. For 450 THB you can hire a long-tail boat that will take you through the mangrove and a local fisher village. The boat can easily take eight people. In my opinion, it is definitely worth the ride. The park itself is open from 06:00 to 18:00.