The marina occupies what was once a deep-water coal port developed by the Londonderry family in the 19th century.
Seaham Beach is internationally renowned among collectors for its multi-colored sea glass, a byproduct of historical glass bottle manufacturing that occurred at the nearby Londonderry Bottle Works.
The marina basin is artificially created and protected from the North Sea by significant Victorian-era sea walls.
The site hosts a dedicated RNLI lifeboat station that maintains a long-standing maritime rescue heritage.
It serves as a primary access point for the Durham Heritage Coast path, a section of the England Coast Path.
Seaham Harbour Marina is a former commercial coal port repurposed into a leisure marina located on the Durham Heritage Coast. It is the only marina situated between the River Tyne and Hartlepool, providing a sheltered basin for recreational craft. The site features a range of independent businesses, including cafes, retail shops, and water sports equipment rentals. Adjacent to the marina lies Seaham Beach, which is globally recognized for the frequent discovery of 'sea glass' washed up by the North Sea. The harbor's original infrastructure has been integrated into a modern visitor destination while retaining historical maritime character. Pedestrian access connects the marina directly to the surrounding coastal footpaths. The area undergoes regular dredging to maintain navigation depths for resident vessels.
From the top of the North Pier looking back toward the colorful buildings and the boat-filled basin.
Bring a small container if you plan to hunt for sea glass, as it is a popular local pastime.
Check the tide tables before visiting if your goal is beachcombing, as the glass is most accessible at low tide.
Wear sturdy, wind-resistant clothing as the exposed coastal location can experience significant temperature drops due to North Sea winds.
Do not attempt to swim in the harbor basin, as it is reserved for boat navigation and maintenance.
Maintain caution near the water edge; do not climb on the historical stone harbor walls.
