Haforn has posted on the first cache of each of the five Geolympix Marathon Series rings that she intends to archive these at the start of July.

I've spoken to her and she's open to the idea of them being adopted, so if one brave soul is capable of taking them all on... or more likely, can we find five locals (south Bucks) willing and able to adopt a ring each? I'd be happy to be the fifth if I can't find more than four others. Let me know?