Brighton Marina's Outer Harbour sits on reclaimed land at the base of chalk cliffs on the East Sussex coast, enclosed within an engineered breakwater structure.

Operated by Premier Marinas, the marina accommodates up to 1,200 berths and can receive vessels up to 41 metres with a draft of 2. 3 metres.

Entry and exit from seaward is described as direct and manageable in almost all weather conditions, though silting has in recent years restricted access around low water.

The outer harbour area is the focus of ongoing redevelopment, including a proposed new deck over the south-western section partly supported on stilts above the main spending beach.

Vehicular access to the marina from the city involves ramps and underpasses, with the site somewhat isolated from central Brighton by its cliff-base position on the A259 coastal road.