Plymouth

Plymouth mixes naval dockyard, commercial shipping and leisure berths around a wide sound. Drake’s Island and Mount Edgcumbe frame the western approaches; the Barbican and Mayflower Steps sit behind Sutton lock on the Cattewater side. One harbour pin is enough for Old Sea Dogs — this page does not stub every marina in the Sound.

Admiralty Chart 30 is the master for Plymouth Sound and Approaches. Watch tankers and bulk carriers in the Cattewater approaches to the eastern marinas; on the western side expect Millbay ferries, Devonport naval traffic and strong streams in The Narrows. The Bridge (Drake’s Island–Mount Edgcumbe shortcut) is narrow, well lit and strongly tidal — marina advice is favourable conditions, often under power; use the chart for depths and obstructions.

Call Longroom Port Control on VHF Ch 13 or 14 as required for movements information. Keep Ch 14 for recreational awareness. Do not impede large vessels constrained to the channel (COLREGS Rule 9).

For Sutton Harbour, call Sutton Lock / the marina on VHF Ch 12. The lock is double-gated, published about 44 m by 12 m, free of charge and staffed 24 hours; free flow is commonly about three hours either side of high water when the gates are open — confirm on the day. Flood-gate procedures at extreme high levels should be confirmed with the lock.

Sutton Harbour Marina is the practical visitor focus of this guide: historic Barbican waterfront, Mayflower Steps character, and guaranteed depth inside the lock. Marina office hours are often published around 08:00–18:00 daily while the lock remains 24/7 — confirm both. Telephone 01752 204702; lock phone numbers are widely published for out-of-hours — confirm the current number with the marina before you rely on it.

Mayflower Marina (west / Millbay side) is a brief alternative: VHF Ch 80 call Mayflower Marina (handbook notes a working channel after contact), telephone 01752 556633. Full-tide access with strong streams in the approaches. Charts cited in the marina handbook include Admiralty 30, Stanford and Imray C14.

Plymouth Yacht Haven at Mount Batten is the other brief alternative: VHF Ch 80 call Plymouth Yacht Haven, telephone 01752 404231, [email protected]. All-tide access with no lock; visitor berths and a fuel station are published — confirm products and hours. Queen Anne’s Battery, King Point / Millbay and Royal William Yard are named only so you know they exist — not as separate Old Sea Dogs pages.

Sutton publishes fuel and pump-out on site in visitor material — confirm products and hours with the marina. Mayflower and Yacht Haven offer full-service marina facilities; Yacht Haven cites diesel availability on its visitor pages — confirm before arrival.

Plymouth has extensive yard, engineering and chandlery support around the Sound. Always confirm insurance and any Dockyard Port requirements via KHM notices before arrival.

The Barbican and Mayflower Steps are the historic shore for Sutton visitors — pubs, restaurants and the old harbour streets within a short walk of the marina. The Hoe and the wider city are easy if the crew wants a longer run ashore.

A Sound arrival with a lock-in town berth at the Barbican.

It is a busy naval and commercial sound, not a quiet creek.

Plymouth’s harbour story runs from the Mayflower Steps and Barbican merchants through the Dockyard Port to today’s mix of naval, commercial and yacht traffic. Sutton lock keeps the historic basin alive for visiting yachts without pretending the Sound is a sleepy river.

Salcombe lies east; Fowey is the first classic Cornish river harbour to the west. Inside the Sound, treat every marina approach as its own pilotage problem on Chart 30.

Use BBC Plymouth (Devonport) tide tables and ADMIRALTY EasyTide. Pair heights and streams with King’s Harbour Master notices and marina advice for Sutton lock free-flow windows. Shipping movements and local Notices to Mariners sit on the KHM Plymouth pages.

The practical information in this Guide was checked against the source records below on 27 October 2026. Operational details can change — confirm with KHM, the lock or the marina before arrival. Admiralty Chart 30 is the chart to work from.