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Nam Ngum Reservoir
Nam Ngum Reservoir is Laos' largest artificial lake and a premier getaway for residents of the capital, Vientiane. Formed by damming the Nam Ngum River for hydroelectric power, the landscape is dotted with countless emerald islands, former mountaintops, creating a serene atmosphere that stands in stark contrast to city life. Visitors can charter boats for leisurely cruises among the islands or dine on fresh lake fish at one of the many iconic floating restaurants. The area is also notable for its nearby traditional salt extraction sites, offering a glimpse into local industry. Hiking in the surrounding hills provides sweeping panoramic views of the vast, shimmering water surface. The region hosts a range of accommodations, from modest guesthouses to upscale resorts, first-rate for a peaceful retreat. The journey from Vientiane takes about two hours via well-paved roads. The best time to visit is in November, following the rainy season, when the foliage is lush and the water level is at its peak.
- Location: Laos
- Nearby: Vang Vieng (15 km)
Best time to visit & climate
The most pleasant time to visit is Jan, Feb, Dec.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | 21 | 24 | 27 | 30 | 29 | 28 | 27 | 27 | 27 | 26 | 24 | 21 |
| Rain mm | 7 | 9 | 30 | 51 | 136 | 146 | 188 | 220 | 163 | 64 | 14 | 6 |
Geography
Facts
- Largest artificial lake in Laos
- Key source of hydroelectric power
- Comprised of hundreds of small islands
- Popular destination for scenic boat tours
- Famous for its unique floating restaurants
- Located roughly 90 km from Vientiane
- Proximity to traditional salt mines
- Offers various water sports activities
Explore nearby
Notable places around
Route planner — Car & Motorhome
Where do you start? We build the route here, with stops and country notes along the way.
© OpenStreetMap contributors · OpenRouteService
Sights in the town Nam Ngum Reservoir (1)
Frequently asked questions
Nam Ngum Reservoir: where is it located?
Nam Ngum Reservoir: when is the best time to visit?
Nam Ngum Reservoir: why is it worth visiting?

























