Got to spend some time in my new „home turf“ limestone, but over 400km away from the Dachstein as the crow flies! Guess that Tethys sea was kind of large.
Anyway, no sizeable caves but some interesting Kaolinite mining remnants and fun with UV (guided tour), definitely has me tempted to get a torch! Examples of fluorescence and phosphorescence below (just taken with my phone, excuse the poor quality).
I particularly enjoyed how crystallisation layers appearing homogeneous to the naked eye were easily differentiated under UV.