I just wanted to share my first experience using a metaldetector. 3 weeks ago my Dad gave me his metaldetector (thanks Dad) and we went to a lake where, during war time, the Germans had an airfield there. (After the war the Danish government used the airfield as well).
I live in Denmark, and the airfield is located in Værløse. Nowadays, it's left to rot, but it's all fenced in.
Right outside the fence, I turned the detector on, and 10 minutes later, I found a grenade, all intact. At first I thought is was a german egg-grenade, but it proved to be a Danish M54 drill-grenade ( I was later told). I must admit I was pretty scared when I found out, it was a grenade ;-). We called the cops and they took care of it.
Other than that, we found alot of empty cartridge-shells. I think they were Danish as well. It won't be the last time going up there, but we need to be careful I guess.
Anyways, bye bye,