Sirindhorn Dam and Lake
A vast artificial lake in the heart of Isan, Sirindhorn Dam offers open vistas, islands emerging in the dry season, and authentic rural atmosphere just 70 km from Ubon Ratchathani.
Sirindhorn Dam stretches across the Lam Dom Noi River in Ubon Ratchathani province, at Thailand's far northeastern edge. Built in the 1960s and inaugurated in 1971, it forms a vast reservoir that draws anglers, families, and travelers seeking quiet nature away from mainstream tourist routes. The site is named after Princess Sirindhorn, a patron of arts and sciences in Thailand.
Key Information at a Glance
- Access: by car or motorcycle from Ubon Ratchathani (approximately 70 km southeast), via Route 217 then Route 2222.
- Entrance: free access to the dam site; certain recreational zones may charge a modest entry fee.
- Recommended duration: half day to full day if combining boat trips and picnicking.
- Dress code: no particular clothing restrictions.
What You'll See
The artificial lake covers several dozen square kilometers and offers open panoramas of forested hills. Islands emerge according to water levels, particularly photogenic in the dry season. Colorful fishing boats ply the surface in early morning. Along the shoreline, developed parks welcome picnics and Thai family celebrations.
History and Context
The dam is part of the royal hydro-agricultural development project launched during the reign of Rama IX. It irrigates the region's rice paddies and regulates seasonal floods in the Mekong basin. Princess Sirindhorn, for whom it is named, visited the site several times in her rural development missions throughout Isan.
Highlights of Your Visit
The Dam Crest
You can walk or drive along the concrete crest overlooking the lake on one side and irrigated plains on the other. The view opens in both directions, ideal in late afternoon.
Boat Cruises
Motorboats are available for rent from local fishermen to explore the lake's inlets and approach islands. Negotiate directly on site; no fixed prices are posted.
Birdwatching
Wooded shorelines and peripheral wetlands attract herons, kingfishers, and egrets, especially at dawn and dusk.
Photography Tips
The golden light of sunrise reflected on the lake is most striking. Position yourself on the dam crest facing east. In the dry season (November–March), emerging islands create compelling compositions. Avoid midday: light is harsh and sky often washed out.
Location and Access
The dam is located in Sirindhorn District, Ubon Ratchathani Province. From Ubon Ratchathani town, allow approximately 1 hour 15 minutes by car. No direct public transport is known; renting a motorcycle or car is most practical. The site is flat and wheelchair-accessible in developed areas.
Nearby
- Pha Taem National Park — Mekong cliffs and prehistoric rock paintings, approximately 50 km northeast.
- Ubon Ratchathani Town Centre — temples, night market, and the province's national museum.
- Wat Phu Tok — monastery perched on a sandstone inselberg in neighboring Bueng Kan province, a day excursion.
Frequently asked questions
The dry season, November through March, offers the lowest water levels (visible islands), clear skies, and manageable temperatures. In the rainy season (June–October), the lake is full and lush but secondary roads may flood.
No direct bus service is known. The most common solution is renting a motorcycle in Ubon Ratchathani or arranging a taxi or songthaew for the day.
Swimming is not officially encouraged at the dam site. Some natural sandy beaches on the shoreline are used by locals, but ask locally about permitted areas.
A few modest guesthouses and resorts exist in Sirindhorn District. Most travelers stay in Ubon Ratchathani and make it a day trip.
Yes, both sites are in the same geographic area. A well-planned day by car allows you to see the dam in the morning and Pha Taem's cliffs in the afternoon.
Give it a go!
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