Trying to get 6 different types of caches today for the Surrey Icon Challenge. This was the first letterbox hybrid we've come across. We thought it might be tricky to find without a GPS but it was actually in the first place I looked - a good hide though.
The letterbox stamper of course was very appropriate (it took us a few seconds to realise what it was). CC2 in fact has been watching the old episodes of The Prisoner over the summer holidays and is really looking forward to the re-make of the series later this year.