Ratchaprapha Dam | Gulf of Thailand

Ratchaprapha Dam – The Jewel of Khao Sok

Ratchaprapha Dam (เขื่อนรัชชประภา), also known as Cheow Lan Dam, is a breathtaking hydroelectric dam located in Surat Thani Province. Built in 1982 across the Khlong Saeng River, it forms the spectacular Cheow Lan Lake, famous for its towering limestone karsts, emerald-green waters, and floating raft houses.

Often compared to Guilin in China or Halong Bay in Vietnam, Ratchaprapha Dam is a top destination for nature lovers, adventurers, and those seeking tranquility within Khao Sok National Park.

Key Features of Ratchaprapha Dam

1. Spectacular Scenery – Limestone Cliffs & Turquoise Waters

The Cheow Lan Lake, created by the dam, is the main attraction. Covering 165 square kilometers, it features hundreds of limestone karsts rising dramatically from the water, resembling a lost world of misty peaks and untouched wilderness.

• Best viewpoints:
  • Dam Viewpoint – A panoramic view of the lake and lush forest.
  • Three Brothers (Sam Khao Karst Formation) – The most iconic limestone cliffs.

2. Floating Raft Houses – Unique Overnight Stays

One of the most unforgettable experiences is staying overnight on the lake in a floating bungalow. These raft houses, ranging from basic bamboo huts to luxurious eco-resorts, let visitors wake up to misty mountains and the sounds of nature.

• Popular floating resorts:
  • 500 Rai Floating Resort – A luxury option with private decks.
  • Panvaree Resort – Mid-range comfort with stunning views.
  • Keeree Warin Resort – Budget-friendly, closer to nature.

3. Boat Tours & Kayaking – Explore the Hidden Wonders

Exploring the lake by long-tail boat or kayak is a must. The serene waters allow for peaceful paddling through hidden coves, caves, and jungle-lined shores.

• Popular spots on boat tours:
  • Guilin of Thailand – The most famous limestone formation.
  • Pra Kay Petch Cave (Diamond Cave) – A stunning cave with sparkling rock formations.
  • Khlong Saeng Wildlife Sanctuary – Home to rare animals like gibbons and hornbills.

4. Jungle Trekking & Wildlife Spotting

The lake is surrounded by Khao Sok National Park, one of Thailand’s oldest rainforests. Guided treks take visitors deep into the jungle, where they can encounter elephants, langurs, gibbons, and exotic birds.

• Popular trails:
  • Nam Talu Cave Trek – A cave adventure that involves wading through an underground river.
  • Coral Cave (Pakarang Cave) – Known for ancient rock formations.
  • Wildlife Safari Tour – Early morning boat rides for the best wildlife spotting.

5. Stunning Sunrises & Sunsets

Cheow Lan Lake is famous for its misty morning sunrises and golden-hour sunsets, with reflections of the limestone cliffs creating a surreal, dreamlike atmosphere.

Best Time to Visit

• November to April: The best weather, with clear skies and calm waters.
• May to October: Rainy season, but the lake remains beautiful, with fewer tourists.

How to Get to Ratchaprapha Dam

The dam is located in Khao Sok National Park, Surat Thani Province, about 70 km from Surat Thani City and 170 km from Phuket.

• From Surat Thani (1.5-hour drive):
  • Drive via Highway 401 to the dam entrance.
  • Local buses and taxis are available from Surat Thani to Ban Ta Khun (nearest town).
• From Phuket or Krabi (3–4 hours):
  • Drive via Highway 4, then take Highway 401 towards the dam.
• By Public Transport:
  • Take a bus or minivan from Surat Thani, Phuket, or Krabi to Khao Sok National Park.
  • From the park entrance, hire a songthaew or taxi to the dam.

Where to Stay

• Floating Resorts: Stay on the lake for a unique experience.
• Khao Sok Hotels & Eco-Lodges: Stay near the national park entrance for jungle trekking and wildlife tours.
• Surat Thani Hotels: Good for travelers stopping overnight before visiting the dam.

Nearby Attractions

• Khao Sok National Park – Trek through one of Thailand’s most ancient rainforests.
• Nam Talu Cave – A thrilling cave trek with an underground river.
• Khlong Phanom National Park – A less crowded nature spot with unique rock formations.
• Surat Thani City – Explore the local culture, night markets, and riverfront.

Conclusion

Ratchaprapha Dam and Cheow Lan Lake are among Thailand’s most breathtaking destinations. Whether you’re cruising through the limestone karsts, staying in a floating bungalow, trekking through the jungle, or watching the sunrise over misty waters, this hidden gem offers an unforgettable escape into nature.