Swimming & Cave Dragons Hike
This varied hike connects Lake Thun, the Weissenau castle ruins, the nature reserve, and the St. Beatus Caves – including bathing spots, impressive views, and exciting history.
From Lake Thun to the St. Beatus Caves
Start in Interlaken West and hike along Lake Thun through the Weissenau nature reserve to Sundlauenen. From there, the path leads up to the St. Beatus Caves. Along the way, quiet lakeside paths, beautiful bathing spots, historical sights, and impressive nature await you.
With a length of around 8.5 km and a hiking time of about 2 hours 20 minutes, the tour is ideal for a varied half-day excursion.
The Route to the Cave
Interlaken West – Weissenau – Neuhaus – Sundlauenen – St. Beatus Caves
The hike begins at Interlaken West railway station and leads along the shipping canal to the Weissenau castle ruins. Afterwards, you hike through the nature reserve to Neuhaus and further on to Sundlauenen. After crossing the Sundbach stream, the trail climbs through the forest up to the St. Beatus Caves.
Nature, History and Cave World
- Weissenau castle ruins with a view over Lake Thun
- Weissenau nature reserve with floodplain landscape and bird watching
- Bathing spots and recreation areas along the lake shore
- Historical section of the Way of St. James
- Waterfall and stalactite caves of the St. Beatus Caves
Tip: You can travel comfortably back to Interlaken by boat or bus, or continue your hike along Lake Thun to Merligen.
Well Prepared
Frequently Asked Questions About the Hike
The hike is around 8.5 km long and takes approximately 2 hours 20 minutes. You should plan additional time for visiting the St. Beatus Caves.
Yes. Part of the trail runs directly along Lake Thun and offers several beautiful spots for a break or a refreshing swim. The route is highly popular, especially on warm summer days.
From the St. Beatus Caves, you can easily take the bus to Beatenbucht and board the boat to Interlaken from there. Alternatively, there are also direct bus connections back towards Interlaken.
Experience Nature, Water and Caves
This hike combines everything that makes Lake Thun so special: idyllic lake shores, protected natural landscapes, historical sights, and the fascinating St. Beatus Caves. A tour for anyone looking to combine nature, movement, and top destinations in a single day.
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Info centre
The most important information for your visit at a glance. Contact us if you have any questions.
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