Duncansby Head Lighthouse

Duncansby Head (Scottish Gaelic: Ceann Dhunngain or Dùn Gasbaith) is in Caithness, Highland, in north-eastern Scotland. The headland juts into the North Sea, with the Pentland Firth to its north and west and the Moray Firth to its south. It is the most northeasterly point of the British (and Scottish) mainland, slightly northeast of John o' Groats. It is about 20 km (12 mi) east-southeast of Dunnet Head, the northernmost point of the mainland.

Source: wikipedia