Unsichtbare Wasserwege

We hike on the deposits of the Flims landslide, the largest landslide event in the Alps. Unique waterways have formed in the debris of the landslide. Insights into the underground water network are offered by the mysterious lakes hidden in the forest and glittering turquoise.
From our meeting point we walk leisurely to Lag Prau Pulté, cross the bypass road of Flims and continue to Lag Prau Tuleritg and Lag la Cauma. Inputs await at various stops: How can the age of the Flims landslide be determined? How fast does groundwater flow? Why do the water levels of the lakes fluctuate?

Head:
Stefanie Wirth: Geologist/Hydrogeologist (MSc, PhD), GeoGuide of the UNESCO World Heritage Site Tectonic Arena Sardona

Meeting point:
09:30 am Bus stop Flims Waldhaus, Promenada (side of the road towards Laax)

End of the tour:
approx. 1:00 p.m. at Lac la Cauma (end of the tour, possibility to return together to Flims Waldhaus)

Information about the hike:
- Walking time 1.5 hours, ascent 150 m, descent 250 m, distance 5 km
- Requirement mainly T1, short section T2 (hiking scale SAC)

Equipment:
- Good footwear with treaded soles
- Clothing adapted to the weather
- Snacks/drink from the backpack

Costs and registration:
- CHF 45 per person (CHF 20 discount for members of the UNESCO World Heritage Association Tectonic Arena Sardona)
- Registration by 11 July 2026 to Stefanie Wirth: mail@geologin.ch or +41 79 562 60 15

Implementation:
In case of very bad weather, I reserve the right not to carry out the tour or to change the program.

Insurance:
Insurance is the responsibility of the participants.