We did the searching for the clues months ago - that was a lot of fun. We had a similar experience to the two FTFers and would recommend doing that to others too. We were looking around Guildford on a Friday night, and the most memorable experience of our nights hunting was being invited to a nightclub by some hen night girls - we sadly had to decline (The Bobcat being too young and me being too married)
This morning we decided to get the final clue and pick up the cache. This took us ages though and in the end had to PAF.