I had an opportunity for a brief visit to the Bozkovské Dolomitové Jeskynĕ or the Bozkov Dolomite caves. The cave system is 1060 meters long and hosts the largest underground lake in Czech Republic.
This was just a show cave tour, so unfortunately no crawling in mud like in Gotland!
More information about this cave can be found from the wikipedia page. A good list of show caves in Czech Republic can be found from the expat page.
Interesting forms and colours:
More interesting forms in the cave:
Remember that pointers to all my stories about caving and skiing can be found at the Planetskier.net and Planetcaver.net web sites.