Slovenia's surface - let's be honest - with it's 20,273 km2 is not too big. But have you heard about Slovenia's underground? At the moment we have counted over 13,000 caves and the number is changing constantly as Slovenian spelunkers are discovering new caves as we speak.
Most of the underground is not easily accessed, but we have more than 20 caves that can be visited easily and a few mines that offer tourist visits as well. Of those I chose three experiences that I have experienced and are my favorites.
After writing a blog in Slovenian language for 10 years I have finally come to my sense and started writing one in English as well.