We did most of the work for this one yesterday, finding all but the final cache (which was not possible, due to a typo in the cache description). We came back this afternoon to finish the job.
We were delighted by the backward-facing plaque at Clue 5.
Took a Scout badge; left a commemorative coin.
Thanks to Andy for correcting the cache coordinates. And thanks for a pleasant walk around Caerleon, too.