Hiking & nature

Secrets of the underworld: discover karst & caves

Public excursion in the Schrattenfluh near Sörenberg

Embark on this adventure on the Schrattenfluh! You will discover the devil's tracks – deep furrows in the limestone – and descend into one of the countless caves with a headlamp. Once inside the mysterious cave world, you will discover unique stalactite formations. The Entlebuch excursion world enchants its guests with a unique variety of natural jewels.

From Bern and Lucerne you can travel directly by public transport to Schüpfheim and then by bus to Sörenberg.

Karst and caves excursion

On this guided excursion you will discover the kilometer-long karst fields of the Schrattenfluh, follow the deep gorges, discover mysterious sinkholes and fascinating karst caves.

Circular walk over sharp-edged limestone rocks; hiking boots and steady footing required
Meeting point: 09.15 hours Sörenberg Tourist Office
Duration: approx. 6 hours, including approx. 3.5 hours’ walking (500 m ascent)
End of the excursion (Wagliseichnubel): at approx. 15.00 hours
Equipment: hiking boots, rainwear, warm clothing for the cave visit, packed lunch and drinks
Tour led by Pius Schnider, Armin Thalmann or Adrian Banz, karst limestone and cave guides

Availability Available on 18.07.2026

Karst and caves excursion

Saturday, 18 July 2026
Wednesday, 22 July 2026
Saturday, 25 July 2026
Wednesday, 29 July 2026
Friday, 7 August 2026
Saturday, 26 September 2026
Saturday, 3 October 2026
Saturday, 10 October 2026

Subject to change without prior notice

Rates

CHF 35.00 Children from 8 up to 16 years
CHF 45.00 Adults
CHF 95.00 Families max. 2 adults and 3 children

For groups (of 10 or more people), a customised offer is available on request

Prices in CHF incl. VAT / Prices and products subject to alteration.

BLS suggestion

Other exciting biosphere excursions

The Biosphere offers exciting excursions throughout the year, taking you to the most beautiful corners of Entlebuch. Be it in the stream bed as a “nature painter” with green algae, accompanying the hunter and gamekeeper, or watching nature’s pilot, the bat, at night – the world of exploration in the Entlebuch region captivates its guests with a unique variety of natural gems.