The caves are situated in the pictureresque valley of the Bečva river near the spa Teplice nad Bečvou. This is a unique cave system of European significance created by simultaneous activities of atmospheric water and hot mineral water, springing from great depths in the dolomite area. The unique decorations of the caves contain aragonite, „geyser“ stalagmites and sinter ball coating, reminding of doughnuts. The bottom levels of the caves are parmanently filled with carbon dioxide. The caves are the warmest underground spaces of the Czech Republic, with permanent temperature of 14 degrees Centigrade, which remains stable throughout the year. T ...