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A mangrove-lined estuary. Many places (hotels, restaurants, guesthouses) rent kayaks cheaply here. The top of the estuary is a rocky area. If you want to be alone, you can pass by it carrying the kayak, then swim in a natural pool surrounded by forest. Very few people can be bothered to go here, so it is very clean. There is also a tributary flowing from a mangrove forest partway up, on the west side. This is quite spooky and has more pollution as the top is a road and there are some houses at points the way, but you can still appreciate the natural environment, which is pretty spectacular at points and maybe see some rare bird life. You can also kayak out to the ocean, which is often very still and without waves, and being shallow the water is warm a long way out.
A typical fishing village. The concrete road takes you all the way to it. Good place to enjoy fresh seafood. Cheap snorkelling and fishing trips can be arranged here with local fishermen.
Hiking path connecting Klong Chao and Ngamkho Bay. There is an impressive, old rock formation. What it resembles is the subject of some dispute. It's a religious site for Thais.
A grove of massive 300-500 year old trees in the middle of the rain forest. Worth a visit.
The Secret Waterfall
At the end of a strenuous, steep 100 m path.
The largest waterfall on the island, with a huge pool that you can swim in. A 20- to 30-min walk from the turn-off, sometimes you can hitch. Organised tours usually visit the waterfall in the afternoon.
This waterfall is smaller, more quiet and also with a pool where you can swim.