Is there any groups of tours that do this sort of thing in Hamburg? I've never done it but fancy learning more about it in a group.
Very interested to read about this activity after lookign up what you were talking about. It sounds like great fun and similar to the treasure hunts of old that I used to go on.
Would love to hear more if you've discovered anything.
I've not discoverd any groups or anything like that as of yet here. Would you like to try it with me?
Are there are any around this area to find then? Where do you even start?
This is an old blog but shows that its been going on here for at least 5 years.
I imagine many of the caches are very well established.
I'll send you a message.