@Alex and Filomena:
Thanks for the links, this is getting really interesting now. That's what I'm looking for!

All of them look quite interesting. As I'm very curious about Russia anyway (and everything will be new to me) I won't be picky about the geocaches. If you both will organize something, I'll be definitely with you! I just thought, that Sunday is better for me for a whole day geocaching-tour (for me Monday would work as well). Saturday would only work for a short tour, but all of these geocaches are quite dar away (unknow to me so far, as there are lostplace-geocaches in Berlin as well).

So, yes, I'm in but I'll let you organize the details (I won't be much of a help anyway, besides printing the translated detals for me). I don't know whether you have visited all of them yourself, but maybe it would be nice to go somewhere, where not all of you have been before.

Don't worry about the language, usually one understands a lot just by the gestures and a simple arrangement of words.

However, for details better write to fingaigai[ät]gmail.com

Thanks a lot to everyone!