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Bear Lake Sovata
Bear Lake (Lacul Ursu) in Sovata is the largest heliothermal lake in the world and a unique natural monument in Transylvania. It was formed on May 27, 1875, following the collapse of a salt mining area that created a depression where rainwater and mountain streams collected. The lake is famous for its heliothermal phenomenon, where a top layer of fresh water acts as a magnifying glass, trapping solar heat in the denser saltwater layers below, reaching temperatures up to 40-50 degrees Celsius. Spanning roughly 4 hectares with a maximum depth of 18 meters, the lake is a major center for balneotherapy due to its high salt concentration and therapeutic mud. The surrounding area is protected as a natural reserve, featuring educational trails through the 'salt mountains' and dense forests that characterize the unique microclimate of the Sovata resort.
- Location: Mureș, Romania
- Top sights: Amphitheatre · Lacul Ursu · Strand Aluniș
- Nearby: Praid (6 km)
Best time to visit & climate
The most pleasant time to visit is Jul–Sep.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -4 | -2 | 3 | 9 | 14 | 18 | 20 | 20 | 15 | 9 | 3 | -2 |
| Rain mm | 29 | 30 | 38 | 50 | 79 | 105 | 90 | 71 | 50 | 47 | 34 | 34 |
📋 Practical info
Geography
Facts
- Bear Lake was formed on May 27, 1875, at 11:00 AM.
- It is the world's largest heliothermal lake, covering 4 hectares.
- Water temperatures can reach up to 50°C in the intermediate layers.
- The lake has a maximum depth of approximately 18 meters.
- Salinity levels reach up to 250-300 grams per liter in the depths.
- Its name comes from its shape, which resembles a bear skin rugs.
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 Bear Lake Sovata (4)
Bear Lake
Lake in Romania, a salt lake used for heliotherapy and bathing.
Sights nearby
Frequently asked questions
Why is it called Bear Lake?
What is special about the water?
Are there fixed swimming hours?
Can you sink in the water?
When is the swimming season?
Bear Lake Sovata: where is it located?
Bear Lake Sovata: what is there to see?
Bear Lake Sovata: when is the best time to visit?
Bear Lake Sovata: why is it worth visiting?























