Somerleyton Marina sits on the River Waveney between St Olaves and Oulton Broad, within the Somerleyton Estate in Suffolk. It lies on the southern rivers of the Broads, roughly three miles below Oulton Dyke and close to the historic Somerleyton Swing Bridge.

The marina comprises a mooring basin and a long-established boatyard business, and has historically served more as a boat storage facility than a busy pleasure-craft destination, owing to its relatively remote position away from the more popular Broads hotspots.

The estate has sought Broads Authority permission to revamp the site, with plans to upgrade existing pontoons and parking and to add residential moorings on the western side of the basin.

Its quiet, marsh-flanked setting on the tidal Waveney makes it a calm access point for exploring this stretch of the southern Broads.