>>Not a scary dog thankfully, it was a canny old Border Collie<<
Lots of sites in Ireland have self-appointed Border Collie Guardians/Guides. It got to the point that as soon as we pulled up near a site in the middle of nowhere, we'd look for the Border Collie Guide who would show us the way! I remember the one at Argdgroom Outwards was particularly helpful and friendly.
Last August in Scotland, there was a BC at Cullerlie, although that site is very near a farm.
Rune