Bascule Bridge.

Dunbar Harbour is a historic and scenic working harbour located in the coastal town of Dunbar, East Lothian, Scotland, on the southern shores of the Firth of Forth and the North Sea. It's about 30 miles (48 km) east of Edinburgh and 30 miles north of Berwick-upon-Tweed

It's a working fishing port that primarily lands shellfish, with a fleet of commercial boats alongside leisure craft, sailing club vessels, kayaks, paddleboards, rowers, and divers,

HWW !.........From the archives and in 16.9 format therefor a large view may be good