The Brough Head Lighthouse is on the Brough of Birsay a small tidal island that is accessible at low tide over a pedestrian walkway.
The Brough of Birsay seen from beach on the Orkney Mainland.
Swans in the sea near the Brough of Birsay.
You can walk across from the car park to the Brough Head at low tide. You do need to be careful not to take any chances with the tides.
The ancient settlement on Birsay dates back to the 5th century, you can read about the settlements on the Brough of Birsay wikipedia page.