Just got back from a week of surfing in Portugal and already my mind is on the next surf trip. But it's a long way away and I just want to be in the water (salty or fresh) doing something, *anything* (other than drowning).

Can anyone reccommend somewhere that does kayaking, windsurfing, kitesurfing or anything of that ilk in and/or around this lovely, waveless place we call Berlin? Somewhere with instructors/classes would be a bonus.

Cheers all.