Plizio Visual Lab
Slavonice Underground
The Slavonice Underground is one of the oldest and best-preserved medieval drainage and cellar systems in Central Europe. The tunnels were hand-dug into gneiss rock starting in the 13th century, originally serving to drain the foundations of townhouses and as storage rooms for goods and food. Over the centuries, the system was expanded to a total length of approximately 1.5 kilometers, with passages often only 1.2 to 1.5 meters high and less than a meter wide. During wars and sieges, these tunnels served the city's citizens as secret escape routes and hiding places. Today, a part of the system is open to visitors, offering two different routes with varying levels of difficulty. Traversing the tunnels often requires rubber boots and protective clothing due to the extreme narrowness and low water levels, providing a fascinating insight into medieval engineering.
- Location: Czech Republic
- Top sights: Nanebevzetí Panny Marie · bašta · Muzeum samorostů
- Nearby: Telč Historic Square (22 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 | -1 | 3 | 9 | 13 | 17 | 19 | 19 | 14 | 8 | 3 | -1 |
| Rain mm | 40 | 31 | 41 | 36 | 76 | 84 | 82 | 81 | 64 | 44 | 38 | 36 |
📋 Practical info
Geography
Facts
- Tunnels were manually carved into the rock starting in the 13th century.
- The entire system extends for approximately 1.5 kilometers.
- Passages are in some places only 60 cm wide.
- Two visitor routes are available, measuring 130 m and 380 m.
- Served as a fire protection water reservoir in the Middle Ages.
- The deepest points lie about 7 meters below the town square.
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 Slavonice Underground (8)
Ehemaliger Gutshof aus Hoyos-Sprinzenstein'schem Besitz
Former manor farm, once owned by the Hoyos-Sprinzenstein family.
Muzeum čs. opevnění 1935-1938🏛 museum
Museum of Czechoslovak border fortifications from 1935 to 1938.
zboř. zámek Maříž
Castle ruins in Czechia, former manor house in Maříž.
vodní vpusť
Water inlet, part of the historic water pipeline to the castle.
Sights nearby
Frequently asked questions
How cold is it underground?
Is the tour suitable for claustrophobic people?
How long does a guided tour last?
Are there age restrictions?
In which languages are tours offered?
Slavonice Underground: where is it located?
Slavonice Underground: what is there to see?
Slavonice Underground: when is the best time to visit?
Slavonice Underground: why is it worth visiting?






























