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Soos National Nature Reserve
The Soos National Nature Reserve, located near Františkovy Lázně, is a unique geological phenomenon in Europe. Covering 221 hectares, it features extensive peat bogs and mineral mires shaped by carbon dioxide emissions from deep within the earth. A key feature is the presence of mofettes, small mud volcanoes that constantly hiss as they release gases. The landscape is covered with a thick layer of diatomaceous earth, the remains of prehistoric algae from an ancient lake. Due to high salt and mineral concentrations in the soil, a specialized flora has developed here, typically found only in coastal regions. A wooden nature trail guides visitors safely through the fragile bog environment, offering insights into the region's post-volcanic activity. The reserve also includes a paleontology museum and a rescue station for injured wildlife. Due to its bizarre and barren beauty, Soos is often referred to as 'Czech Iceland'.
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A postcard from Soos National Nature Reserve
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Create a postcard- Location: Czech Republic
- Highlights: Geofyzikální expozice Skalná · národní přírodní rezervace Soos · Děvín
- Nearby: Frantiskovy Lazne (5 km)
Best time to visit & climate
The most pleasant time to visit is Jun–Aug.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg °C | -3 | -2 | 2 | 7 | 12 | 16 | 18 | 18 | 13 | 8 | 3 | -2 |
| Rain mm | 58 | 44 | 49 | 42 | 72 | 74 | 81 | 77 | 61 | 54 | 58 | 62 |
📋 Practical info
Geography
Facts
- Total reserve area is 221 hectares
- Established as a reserve in 1964
- Features numerous active mud mofettes
- The nature trail is approx. 1.2 km long
- Soil composed partly of diatomaceous earth
- Home to over 20 mineral springs
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 Soos National Nature Reserve (6)
Sights nearby
Frequently asked questions
What are the mofettes in Soos?
How do you explore the reserve?
Is there a museum there?
Is it allowed to leave the paths?
Where is Soos located?
Soos National Nature Reserve: where is it located?
Soos National Nature Reserve: what is there to see?
Soos National Nature Reserve: when is the best time to visit?
Soos National Nature Reserve: why is it worth visiting?















