One thing I always find very funny/annoying (equal measures really) is the fact that everything is labeled and posted. It was a single track road, but about every two to three miles there would be a sign saying it was a single track road. There were plenty of overtaking places and most had a sign saying that it was an overtaking place! Mad I tell you, mad!
Bute is quite a simple island. Follow the road and you're bound to get to somewhere. I wasn't sure where the house I wanted to visit was, but figured that I would see a sign at some point. Which I did. Right before the entrance to the estate.