While at a vacation in Basel, CH. I decided to visit the local hackerspace, Chaostreff. Chaostreff is located in a basement of a apartment building, and next to piles of mate, pinballs and blinkenlights they have their own fallout shelter! I was received in the friendliest of fashion, and they also brewed me a Tschunk. I can strongly recommend it!
They are organizing the Easterhegg "Easterhack" Event that even has its own wikipedia page from 06.04. till 09.04.2012, in collaboration with the CCC. Unlike the CCC congress, which focuses on talks, the focus in on workshop and getting your hands dirty. The previos Easterhegg was in Hamburg 
We are al invited!