The one brigde in Dubrovnik, almost every tourist passes while visiting the Old Town. A lot of tourists all day, so be careful while searching for the cache. The coords are jumping because of the walls – just go under the bridge and look for the hole in the wall facing northwards.
Beware of muggels and cover the box with the stone - hope it will stay there for longer!
Enjoy!
gurer'f bayl bar ubyr....