Hell Grottoes – Neuheim, Switzerland - Atlas Obscura
Join us on an Atlas Obscura Trip in 2019 »

Neuheim, Switzerland

Hell Grottoes

These spooky and unusual stone formations create an underworldly landscape. 

The aptly named Hell-Grottoes consist of twisted, tangled stone formations and murky subterranean lakes that take hours to fully explore.

The Swiss location has become such a legendary draw, the caves are lit with eery lights and adorned with safe footpaths to make it safe and appealing for visitors. As a result, these strange and fascinating caverns have become something of a tourist attraction, with tours and guides readily available.

Know Before You Go

Opened from late March to late October each year. Closed over the winter months.