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What to Expect

Explore with us the wild, completely nature Gustav-Jacob Cave. With a length of 210 metres, the main cave forms the longest passage cave in the Swabian Alb. The cave meanders through a mountain spur below the ruin of Hofen Castle and was only discovered in 1936 by the two community worker Gustav Fetzer and Jakob Kazmaier.
Here children have a clear advantage, because the cave is quite low, almost always narrow. Therefoe, standing upright tend to be the exception for adults. A high fun and adventure factor is therefore guaranteed. In the cave we are impressed by real works of art made of stalactites and as soon as we are bent around a corner, the picture is already changing again.

A few dates at a glance:

Community of Grabenstetten, district of Reutlingen
210 meters
Air temperature:
10-12°C all year round
Beautiful stalactites and sinter formations
Only possible from 01 April to 30 September.

Tour course:
A few dates at a glance:
Meeting place:
Parking place Ruine Hofen on the outskirts of Grabenstetten
approx. ca. 210 meters
Duration of the tour:
approx. 2 hours
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Key Details
  • SwabianTravel
  • Duration: 2h
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  • Languages Offered: English, German
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