A Hölloch cave tour in the healthy cave air is currently one of the best things you can do😊👍.
Not only do we have an air humidity of almost 100% in the Hölloch, as our certified cave guide Marcel explains in the video (sorry, in German only), but the Hoelloch is also very well aerated at any time due to the natural cave passages – practically the same as when we are outdoors in the wild. You will see – best conditions for a healthy and safe winter experience!
An overview of the possible tours can be found at
https://www.trekking.ch/hoelloch?lang=en