Board a long-tail at Chiew Lan Lake and cruise between towering limestone karsts, explore a short rainforest trail and the glittering Diamond Cave, then lunch at a floating restaurant with time to kayak or swim. This full-day tour blends easy hiking with serene water time and local insight.
More ways to explore the area's outdoor wonders
The tour begins with the click of a seatbelt and a drive through rubber plantations, then opens into something older: a glassy lake ringed by towering limestone towers. You step onto a long-tail boat at Chiew Lan (Ratchaprapha) Reservoir and the world narrows to karst cliffs—Three Friends Mountain rising like a weathered giant—while the boatman eases you toward hidden coves.
Difficulty
easy
Duration
11 hours
Fitness Level
Suitable for travelers in average fitness—able to board small boats, stand for short periods, and walk 1–2 km on uneven rainforest trail.
Wildlife
History
Cheow Lan (Ratchaprapha) Reservoir was formed after the Ratchaprapha Dam flooded a valley in the 1980s; the park preserves lowland rainforest that is geologically ancient.
Conservation
Park fees help fund rangers and habitat protection; minimize single-use plastics, stay on paths, and avoid feeding wildlife to reduce human impact.
Reserve your spot on the Khao Sok National Park Lake Tour today and enjoy a trusted, highly rated experience designed to help you make the most of your adventure.
Waterproof your essentials
Bring a dry bag or waterproof phone case—the boat and lakeside piers are wet and splashes are frequent.
Expect quick showers
Pack a lightweight rain jacket during the monsoon season; rain can arrive suddenly even on otherwise calm days.
Wear grippy footwear
Water shoes or trail sandals with good traction make dockings and muddy rainforest sections easier and safer.
Bring insect repellent
Forest edges and calm coves attract mosquitoes—apply repellent before hikes and at dusk.
Dry bag or waterproof phone case
Protects electronics and documents from splashes and sudden rain on the boat.
Water shoes or grippy sandals
Helps with wet docks, slippery rocks and swimming access.
summer
Lightweight rain jacket
Useful during tropical downpours common in the rainy months.
summer
Insect repellent (DEET or picaridin)
Reduces bites during rainforest walks and evening periods near the water.