http://www.leagull.com/2013/10/advanced-master-class-in-greifenburg.html

From the 18th to the 24th of August, Gerolf and I conducted our
third and last flying course for this year, this time for “topless” pilots who
already fly cross country for a while, but want to experience the potential of
Austrian Alpine mountain flying and log in a few really cool scenic flights.

Right from the very first flight, one could feel the advanced level of the
pilots. On that day, the weather conditions in Greifenburg were particularly
good: the ceiling was 3700 meters (the landing field at the campground is 600
meters), with almost no wind. Gerolf set up a beautiful task, introducing the
area to the pilots.

Much more at the link above with lots of pictures.