Harbour Walls Of Mullion Cove

The Harbour Walls of Mullion Cove consist of a pair of harbour breakwaters. The North breakwater was constructed between 1890 and 1892, while the South breakwater was built from 1895 to 1897, although some sections may be older. The South breakwater is made of stone rubble, while the North breakwater features snecked serpentine rubble with granite dressings and granite setts on the top surface. The breakwaters extend from the cliffs and change direction at obtuse angles to form a small harbour that dries out at low tide.

On the inside of the North breakwater, there are integral stone steps, and on the outer seaward side, there is a shelter wall, likely added later, which has a raised walkway on its inner side. The South breakwater connects to a causeway at its landward end via two later bridges supported by steel joists, and the railings are modern.

Mullion Cove was particularly significant for pilchard fishing, which was later replaced in the 19th century by crab and lobster fishing. The harbour has largely retained its original character.