While on South Ronaldsay I picked up a piece of sea glass, which I thought looked very like a standing stone. Obviously that was a clear sign that the Ring of Brodgar needed to be one of our next stops after photographing some ships of course. (If you’d like to see the ship photos, follow Maritime Photographic on Facebook.)

I was right, wasn’t I? It does look like a stone.
And here’s how some of the other stones in the circle look.