Domica Cave is the most known and longest cave of the Slovak Karst National Park. It represents a part of the cave complex, which together with the Baradla Cave in Hungary, creates one genetic system with a total length of about 25 km. Domica is 5,368 m long. It was discovered by Ján Majko on October 3, 1926. The extraordinary variety of drip decoration and the richness of shapes make Domica one of our most beautiful caves. An unforgettable experience for the visitor will be a boat tour on the underground river Styx with a length of 140 m. The cave is also a significant archaeological finding place, since the prehistoric man lived here 5-6 thousand years ago in the Early Stone Age – Neolithic Period. The cave is located on the southern slope of the Silická planina in the village of Dlhá Ves.