Pulling on overalls, helmets, and headlamps, we prepared to get dirty and we inched on our bellies and wormed our way through tight crevices in “Superman” poses in the longest cave of Hungary, the Mátyás-hegyi cave in the Pál-völgyi cave system. The cave tour lasts 2.5 – 3 hours and is lead by a caving guide. This adventurous activity is definitely not for the claustrophobic since it goes through natural parts of the cave. You won’t find any nicely paved paths a la “show” caves.