A full-day from Khao Lak that pairs a swim in Nam Rad’s emerald spring with a boat crossing of Cheow Lan Lake, cliffs, caves and a raft-house lunch. Expect easy walks, swims, and calm paddling amid dramatic karst scenery.
More ways to explore the area's outdoor wonders
The morning air from Khao Lak thins as the minivan climbs toward the Khao Sok watershed; palms and rubber plantations fall away and the jungle steps closer, leaves brushing like an attentive audience. At Nam Rad’s Emerald Pool the water dares you to cool off — a glassy, green basin fed by a spring that catches sunlight and throws it back like a jewel. Later, a longtail cuts across Cheow Lan Lake, limestone cliffs rising like old islands from the water, their faces streaked with roots and shadow.
Difficulty
easy
Duration
8 hours
Fitness Level
Suitable for average fitness; involves short swims, brief cave navigation and light walking on uneven ground.
Wildlife
History
The reservoir sits behind Ratchaprapha Dam (completed in the late 20th century), which created the lake that now highlights the region’s dramatic karst towers.
Conservation
Khao Sok and Cheow Lan are protected areas; visitors should stick to marked areas, avoid single-use plastics and follow guidance to reduce disturbance to wildlife.
Reserve your spot on the Cheow Lan Lake with Nam Rad Emerald Pool Tour from Khao Lak today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Start early for calm water
Departures in the morning usually have smoother lake conditions and softer light for photos.
Bring a life vest for kids
Life vests are provided but confirm sizes for children and non-swimmers before boarding.
Wear water shoes
Rocky shorelines at swimming and cave entry points can be slippery; closed-toe water shoes improve stability.
Use reef-safe sunscreen
The area is ecologically sensitive — choose reef-safe sunscreen and avoid applying just before entering freshwater pools.
Swimwear and quick-dry shirt
Dries fast between swims and keeps you comfortable on the boat.
Water shoes
Protects feet on rocky approaches, raft docks and cave entrances.
Light rain jacket or poncho
Monsoon showers can arrive suddenly—keep a compact layer handy.
summer
Dry bag and phone case
Keeps electronics and documents dry during transfers and on the water.