Hoellgrotten in Baar, Switzerland
What to do on a rainy monday? Sure, going underground! After many years we visited again the famous “Hoellgrotten”-caves in Baar. Baar is a little town near Zug and the […]
What to do on a rainy monday? Sure, going underground! After many years we visited again the famous “Hoellgrotten”-caves in Baar. Baar is a little town near Zug and the […]