just a thought if you go that way with the family there's an 'archaeolink' place quite close to aberdeen reconstructions of places, face painting, dancing, shop, bar, well, round house etc etc and up the hill an original site too. I can't remember names and details( i went a few years a go when it first opened) but it may be good entertainment for the children if you decide to wander further in the area for the day.
love caroline x