Here is a sketch of the mysterious island of Foula.
Foula is about 20 miles away from Shetland Mainland, so it hovers on the horizon, often with its own special cloud.
This is a view from the Virda Stane, which is at the top of a hill. It’s a rare view: normally at this stage on the walk I would hunkered down on the East side of the stone, with its bulk sheltering me from the howling West wind. However on this particular day, there was eerily little wind. So I could sit on the West side, and observe Foula, before it disappeared in the fog.