Moorings in Plymouth are mostly marina berths, with harbour trot moorings in the Cattewater, the mouth of the River Plym. The Devon city faces Plymouth Sound and is a naval port, so the River Tamar side is shared with the dockyard. Saltash, Torpoint and Millbrook have their own pages.
Moorings in Plymouth
- Plymouth Yacht Haven: at Mount Batten, part of Yacht Havens Group. It has 450 full-tide pontoon berths, no lock gates and a 75 ton boat hoist.
- Queen Anne's Battery: run by MDL Marinas, with 235 berths for boats up to 18m and a 40 ton hoist.
- Sutton Harbour Marina: run by Sutton Harbour Group behind a lock staffed 24 hours a day. Boats pass freely for up to three hours either side of high water.
- King Point Marina: also Sutton Harbour Group, in the inner basin at Millbay. Walk-ashore pontoon berths for some 151 boats, with 24-hour gated access.
- Mayflower Marina: at Richmond Walk, by Stonehouse Creek. It is owned through Sailport Plc by a small number of its berth holders, and has full-tide access for boats up to 20m.
- Cattewater trot moorings: Cattewater Harbour Commissioners let annual moorings on the Plym, Oreston and Cocklebank trots for boats up to 36 feet. The mooring year starts on 1 April.
- Getting a Cattewater mooring: the harbour office keeps a waiting list. Its 2026/27 policy says it is not taking new applications for self-maintained moorings.
- Private moorings: anywhere in the Dockyard Port, including the tidal Tamar, Tavy, Lynher and Plym, a mooring needs a Licence to Lay Moorings from the King's Harbour Master.
On the water
Plymouth is a Dockyard Port. The Ministry of Defence is the primary harbour authority through the King's Harbour Master, and three harbour authorities work inside it: Cattewater Harbour Commissioners, Sutton Harbour and ABP at Millbay.
- The Cattewater: runs east of a line from Mount Batten Breakwater to Fisher's Nose, as far as Laira Bridge. Every vessel navigating it pays harbour dues to the Commissioners.
- Speed: 10 knots north of the Breakwater and within 400m of the shore, 8 knots in the Cattewater and 4 knots in Sutton Channel.
- Faster water: vessels under 15m may exceed the limit in the Sound when more than 400m from the shore.
- Entrance: boats enter the Sound east or west of the Breakwater. For Mayflower Marina the choice is the Drake Channel or The Bridge, a narrow channel with 2.9m at low water springs.
- Shipping: vessels under 20m must not impede ships confined to the main channel.