Here, a collection of interesting links about the underground is assorted for you, assigned to various special topics. Multi-focussed websites are mentioned in the corresponding categories.

On this site, the visitor will find information on many grottos and caves in Switzerland, presented in some essays and many photographs. In addition, you will find general statistics... more

This is the website of a scientific association concerned with archaelogical sites in Berlin and Brandenburg which are situated in rivers and lakes of the region. The category 'Aktuelles' (The latest) delivers information of the up-to-date diving campaigns... more

A virtual tour of the oldest Silver Mine in Northern Bavaria situated at the Fichtelberg, north-east of Bayreuth. The visitor can anticipate further links to some other touristic attractions of the Fichtelgebirge Mountains... more