Helmy · Yacht Management
Marina in London, United Kingdom
50 St Katharine's Way, London E1W 1LA
IGY-operated locked marina beside Tower Bridge in central London with 185 berths, including 16 for yachts up to 42m LOA, 3.5m draft and 12m beam; reservations needed.
https://www.igymarinas.com/marinas/st-katharine-docks/
All marinas and harbours on Helmy
Helmy lists marinas port by port, free, with no account needed to look. It is also where a boat keeps her own papers, manuals, log book and orders.