Hi Marcus,

There's a long thread (Radon Therapy-Holy Crap it Works!) on page 2 that details my experiences with radon therapy the past two years--treatment was done at the Radium Palace in the Czech Republic.
https://www.kickas.org/ubbthreads/showthreaded.php?Cat=0&Number=259552&an=0&page=1#259552

H20 girl details her experiences with radon therapy in the Montana mines on her blog: http://h20girladventures.blogspot.com

I met an elderly German couple who did the treatment in Bad Gastein. They enjoyed it very much. Please let us know your experiences there!