The sea stack Yesnaby Castle on the Orhney mainland, Orkney, Scotland

The sea stack Yesnaby Castle on the Orhney mainland, Orkney, Scotland

Castlehill flagstone quarry, Caithness, Scotland

Dunnet Head, the most northerly point of mainland Scotland, Caithness, Scotland

Dunnet Head, the most northerly point of mainland Scotland, Caithness, Scotland

Lighthouse at Dunnet Head, the most northerly point of mainland Scotland, Caithness, Scotland

John O’Groats Signpost in Caithn

John O’Groats Signpost in Caithn