From Khao Lak : Cheow Lan Lake & Nam Rad Emerald Pool

A 10-hour day trip from Khao Lak reaches into Khao Sok National Park territory via Takhun District in Surat Thani, roughly an hour and 50 minutes by road. The first stop is Nam Rad Watershed Forest, where a natural pool in the forest gives an early chance to cool off before the lake portion of the day begins at Cheow Lan Pier.

From the pier, the boat covers several points along Cheow Lan Lake, including a photo stop at the Three-Brothers Pillar, a limestone landmark rising from the water where jumping in for a swim is part of the routine. Lunch is a Thai set served at Frog Island, with a 270-degree view over the surrounding limestone peaks and jungle. The afternoon is unstructured time on the water — kayaking, swimming, or just sitting with the scenery — before the boat heads back to the pier and the return drive passes a dam ridge viewpoint on the way to Khao Lak.

Group size is capped at 8, tighter than most Khao Sok lake trips, which keeps the boat from feeling like a shuttle service. Bottled water, a boat, limited accident insurance, and an air-conditioned vehicle are included alongside the lunch set, and difficulty is rated moderate rather than easy — expect some walking and getting in and out of boats through the day. Booking confirms instantly, and free cancellation applies up to 24 hours out.

Insider Tip: Pack a dry bag for the lake portion — between the swim stop at Three-Brothers Pillar and the Nam Rad pool, cameras and phones are at real risk of an accidental dunking.