Tantallon Castle stands on a sheer 30-metre cliff above the North Sea, four kilometres east of North Berwick, with the Bass Rock directly offshore. It was the stronghold of the Red Douglases — one of the most powerful families in late medieval Scotland — and remains one of the most dramatic castle sites in the country. The 15-metre curtain wall facing the land is the most photographed section.
The castle is run by Historic Environment Scotland; allow 90 minutes for the visit. Walk the curtain wall, descend the spiral stair in the central tower, and look out from the dovecote across to the Bass Rock. There is a small interpretive exhibition in the gatehouse.