overlooking Strone from Hunters Quay?
EDIT: Bugger beaten to it!!
Yes, Strone from the middle of the mouth of the Holy Loch. I've often stayed in the Hunters Quay Hotel whilst working in Dunoon, and looked out over the mouth of the Holy Loch at the fairy tale castle on the hill side, but today I got to sail from near Rothesay to Sandbank, and took the picture on the way.