Scpecies are called troglophil, if they need or prefer caves as complementary living space. This page is dedicated to digital cave photography.
Random caves
Nidlenloch
Schweiz
What to write about the Nidlenloch? Lost place? In France, this would be called an initiation speleo.Located in the Solothurn Jura, it is one of the few caves in German-speaking Switzerland that you can simply enter.
