EISRiesenWelt.

  
Today, we tought of going somewhere high again. We decided to go to the EISRiesenWelt mountain.

- The largest glacial cave in the world.

  I even learned  little bit of "The dicovery and exploration of the EISRiesenWelt". For an example:

  In October 1879, alpinist and speleologist Anton von Posselt-Csorich was the first person to enter the front part of the cave. He was able to penetrate about 200 m into it.

  I wasn´t allowed to take pictures in the cave, but I took some outside of it. :)