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About this place
St. Beatus Caves in Sundlauenen, a village in the municipality of Beatenberg in the canton of Bern, are among Switzerland's best-known show caves. They sit on the northern shore of Lake Thun, right at the water's edge. The cave system is full of dripstone formations, and visitors can walk a lit route past waterfalls and finish in a small museum.
What are the St. Beatus Caves?
Water carved the caves into the Niederhorn massif. They take their name from Beatus, a monk and hermit venerated as a saint, who according to legend sheltered here. What is documented is that hermits lived in the caves until the Middle Ages. The full system is far bigger than the visitor section, and sources give different figures for the explored length, running to well over ten kilometres.
What will you see inside?
About one kilometre of passages is open and illuminated. The path winds through chambers hung with stalactites, along narrow gorges and beside falling water. The circuit has 297 steps and climbs and descends roughly 87 metres in total. Allow about an hour.
You explore at your own pace with information boards and a free audio guide. The cave museum, redesigned in 2013, explains how the caves formed and were discovered, displays prehistoric finds and includes a model of the Niederhorn massif. Entry to the museum is included in the ticket.
What should you bring?
The air stays at a steady 8-10°C and is very humid, so pack a warm layer and shoes with good grip. The steps are many and can be slippery, and the route is not suitable for wheelchairs or anyone who struggles with stairs.
How do you get there?
The caves lie beside the lake road between Thun and Interlaken. You can arrive by car, by bus or by boat across Lake Thun. From the car park and stop, a short uphill walk along a stream leads to the entrance.
When is the best time to visit?
The caves are most fully open from spring to autumn, and opening hours and prices change from year to year, so check the official website before you travel. On a hot day the cool interior is a bonus, and going early helps you avoid the biggest groups.
Frequently asked questions
How long does a visit take?
About an hour. The route is roughly 1 km, and the museum adds a little time.
Do I need a guide?
No. The visit is self-guided, with information boards and an audio guide.
How cold is it in the caves?
A constant 8-10°C, so bring warm clothing even in summer.
Are the caves wheelchair accessible?
No. The route has nearly 300 steps and is steep, so it is not suitable for wheelchairs.
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