The Lurgrotte is the largest active water cave in Austria. It lies about 25 km north of Graz and crosses the Tanneben, a karst area between the towns of Semriach …
The Kesselfallstraße after the good rest of the inn Sandwirt you go in, then comes to the left almost inconspicuously the climb to the cave - a rope Hangs that you get on ....