A small very well built structure on high ground. Inside is rough and very nettley but is good shelter from the frequent winds.
It is not too small for five or six ponies but there are none. The area is rarely grazed by sheep and is largely unmanaged.
Just see Balfour Castle
Link on Shapinsay in the backdrop. But the view, slightly right of the picture is of the String and the Stevenson Lighthouse on Hellia Holm