Keywords: caveman0043, mc-quadrat, www.mc-quadrat.at, mt11, mt 11, mt-11, materija, kozina, matarsko podolje, triester karst, carso triestino, slowenien, slovenija, slovenia, höhle, cave, jama, grotta, grotte, grot, höhlenforschen, caving, speleologie
Video length: 05:07