Kaeng Koh Roi is located within Khlong Lan National Park along the Umphang–Khlong Lan route. It is accessible via Ban Pong Nam Ron Road, approximately 15 km from the main road. This natural attraction perfectly combines the beauty of rock formations and clear flowing water.

Natural Features and Environment

Kaeng Koh Roi is formed by Khlong Suan Mak, interspersed with rapids and white sandy beaches amid a mountainous landscape. Hundreds to thousands of boulders spread across a wide area with unique shapes, creating natural obstacles that divide the river into multiple channels.

During the rainy season, some rocks are submerged, leaving only the peaks above water, forming small islands in the river. The crystal-clear water curves through the rocks and green vegetation, creating a cool and scenic environment.

Environment and Ecosystem

• Surrounded by Pong Nam Ron Forest, featuring large and small trees and diverse native plants.

• Habitat for wildlife including various birds, monkeys, and small forest animals.

• The river and rocks form an important freshwater ecosystem, maintaining natural balance and providing clean water for plants and animals.

• Visitors can observe biodiversity and ecosystems while walking along the rocks or forest trails.

Tourist Activities and Services

• Camping: Riverside and park ranger-managed campsites, with grassy areas for tents. Clean male/female bathrooms, hot water, and some electricity available in certain areas.

• Safety: Park staff are present to assist and monitor safety.

• Water Activities and Adventure:

  • Swimming in clear freshwater streams

  • Rafting on Khlong Suan Mak, ~12 km, easy to moderate difficulty; more thrilling during high water (equipment and guides recommended)

  • Hiking and exploring rock formations and mountain views

• Food Services: Small vendors sell simple dishes like papaya salad, grilled chicken, sticky rice. Overnight visitors are advised to bring fresh food and cooking utensils.

Highlights and Attractions

Kaeng Koh Roi hides diverse natural beauty, including unusual rock formations, crystal-clear streams, lush forest scenery, and a complete freshwater ecosystem. Ideal for relaxation, swimming, camping, and rafting adventures, while offering opportunities to learn about local biodiversity and the environment.

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How to Get There

By Private Car:

• Drive along Highway 1117 toward Khlong Lan District

• At Pong Nam Ron intersection, turn onto the paved road to Ban Pong Nam Ron

• Follow the dirt road for ~15 km to Khlong Lan National Park Ranger Station W.J 1

Tips:

• Use a pickup truck or high-clearance SUV due to unpaved, sometimes steep sections.

• Drive carefully, especially during the rainy season, as the road may be slippery and bumpy.

By Public Transport / Local Vehicles:

• Take a bus or minivan from Khlong Lan District to Ban Pong Nam Ron

• From Ban Pong Nam Ron, continue ~15 km by local songthaew or motorcycle taxi to Kaeng Koh Roi

• Contact transport providers in advance for fares and schedules

Entering the Park Ranger Area:

• Contact Khlong Lan National Park Ranger Station W.J 1 in advance to check current road conditions and access information

• Rangers provide guidance on paths to camping areas and the river, ensuring safety

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Travel Tips

• Best time to visit: late rainy season to winter (September–February) for clear water and pleasant weather

• Bring food and cooking supplies if staying overnight

• For rafting, contact local operators or park rangers for proper equipment and guides

• No permanent lodging; only camping areas are available

• Keep the area clean and follow park rules for safety

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Admission Fees:

• Private campsites: 100–200 THB/person/night

• Park ranger-managed areas (W.J 1): entrance fees may apply; check with staff

Opening Hours:

• Open: Daily

• Access: 24 hours for camping, but main area recommended between 08:00–17:00 for contacting park staff