The substance of this post was originally published a year or so ago, but the lighting of the image has been modified a little to capture something of the mystery I associate with the Old Man.
Gugh is a small island in the Isles of Scilly off the south west tip of England. It is one km long and 0.5km wide and is joined to the larger island of St Agnes by a sand bar. As a consequence it is accessible only at low tide. There are just two houses on Gugh. The island has several entrance graves, cairns and burial mounds dating from the Bronze Age. The Old Man of Gugh is a menhir (a standing stone) 2.7metres tall and belongs to that period.
I always see in this picture a tall old man with white beard, bracing himself against the strong Atlantic winds. At the stroke of midnight he begins his steady walk of a watchman guarding his territory, returning to his post before the first cock crow.
There is more background information in my post The Isles of Scilly.