St Beatus Caves
A lit river cave in the cliffs above Lake Thun, tied to a hermit who is said to have driven out a dragon.
Updated 12 October 2026
The caves run back about a kilometre into the cliff above the northern shore of Lake Thun, following an active underground stream, so the visit is a walk beside running water past flowstone, curtains, columns and small cascades, all lit and railed. The legend attached to them is specific: Beatus, an Irish missionary of the sixth century, is said to have lived here as a hermit after expelling a dragon from the cave, and his name is on the site, the village below and the lake steamer. A small museum covers cave research and the region's karst. The approach path from the road climbs steeply past a waterfall, which surprises people who expect a cave entrance at car level.
What's there
- An active stream cave - the path following running water for about a kilometre.
- Flowstone and columns - lit formations along the route.
- The dragon legend - the sixth-century hermit said to have driven it out.
- A steep approach - the climb from the road past a waterfall.
When to go
April to October. Two hours including the climb.
Things to know
Closed through winter. The cave is cool and damp and the floor is wet - proper shoes matter. The approach is a real climb, not a stroll. Photography inside is difficult without a tripod.
Nearby
Beatenberg and the Niederhorn are above; Interlaken is along the shore.
Key facts
Source: Wikidata, item Q664463, read on 18 October 2026.
What to pack for St Beatus Caves
Chosen from what this place is for. Tap a kit for the full checklist.
- Head torch + spare batteries - Hands-free light is essential; caves are truly dark. Find on Amazon
- Grippy closed shoes - Cave floors are wet, muddy and slick with formations. Find on Amazon
- A warm layer - Many caves sit near 10°C year-round, even in a hot country. Find on Amazon
- Gloves - Protect your hands on rough rock and cold metal handrails. Find on Amazon
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Opening times, ticket prices and seasonal closures change - check the official source before you go: official site.


