The River Marsh Marina is set 11 nautical miles inside the Choptank River within the Chesapeake Bay’s 4,000 miles of shoreline, offering guests countless areas to explore, from historic waterman’s villages to pristine marshes. Whether it’s a fleet of yachts or a family vessel cruising in for a rendezvous, our Certified Clean Marina at the Hyatt Regency Chesapeake Bay Resort is perfectly designed for every type of boater. All boaters who dock their boats overnight at our marina gain access to the amenities of Hyatt Regency Chesapeake Bay Golf, Resort, Spa and Marina.