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Soos National Nature Reserve
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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'.
- Location: Czech Republic
- Top sights: 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
Getting there
Reaching this unique geological nature reserve is generally straightforward, with the main access points located just a short distance from the spa town of Františkovy Lázně.
Best season
Late spring through early autumn is typically the most suitable time to observe the bubbling mofettes, as freezing winter temperatures can make the mud phenomena less visible.
Terrain & paths
The reserve features well-maintained wooden boardwalks specifically designed to carry visitors safely over the fragile peat bogs, making the walking paths flat and easily accessible.
What to bring
Comfortable walking shoes are highly recommended for the boardwalks, along with a camera to capture the surreal, lunar-like landscape and the unusual mud volcano formations.
Parking
Dedicated parking areas are usually situated close to the main reserve entrance, accommodating visitors who drive directly from the surrounding West Bohemian towns.
Safety
Visitors must strictly stay on the designated wooden pathways at all times, as the surrounding peat bog terrain is incredibly unstable and actively emits carbon dioxide gas.
Time needed
Exploring the educational trails and observing the bubbling mud springs usually takes about one to two hours, offering a compact yet fascinating geological nature experience.
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.
Vehicle
Only stops with (optional):
© OpenStreetMap contributors · OpenRouteService
Sights in the town Soos National Nature Reserve (6)
Sights nearby
Frequently asked questions
What are the mofettes in Soos?
They are carbon dioxide gas vents bubbling in the mud volcanoes.
How do you explore the reserve?
Via a 1.2-kilometer long educational trail that mostly runs on wooden boardwalks.
Is there a museum there?
Yes, there is a natural history museum on-site with dinosaur models and geological exhibits.
Is it allowed to leave the paths?
No, leaving the boardwalks is strictly forbidden for safety and nature protection reasons.
Where is Soos located?
It is located in West Bohemia, near the spa town of Františkovy Lázně.
Soos National Nature Reserve: where is it located?
Soos National Nature Reserve is located in Czech Republic.
Soos National Nature Reserve: what is there to see?
Highlights include Geofyzikální expozice Skalná, národní přírodní rezervace Soos, Děvín.
Soos National Nature Reserve: when is the best time to visit?
The most pleasant time to visit is Jun, Aug.
Soos National Nature Reserve: why is it worth visiting?
The Soos National Nature Reserve, located near Františkovy Lázně, is a unique geological phenomenon in Europe.
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