Obviously from the title, this mini series is placed near the canal so bear this in mind when bringing children, dogs, buggies, etc
With some research, this one may be available as a Cache & Dash on it's own, but I'm not going to give you parking co-ords as it is designed as a complete trail / mini series.
Some stealth may be required at this one, the muggles can come at you from at least two or three different directions without even thinking about the boats...
Replace at least as well as when you found it so that the next searcher has as much fun as you did. You will need to have brought your own pen / pencil for this one