Best anchorages and harbours in United States

Marker 1 Marina

Marina of 144 in-water berths on Causeway Boulevard in Dunedin, on St Joseph Sound, run by Loggerhead Marinas.

MARKER 21 MARINA

Boatyard and marina at Fort Walton Beach, on the Santa Rosa Sound side of the Intracoastal Waterway in the Florida Panhandle.

Marker 24 Marina

Marina on the Banana River at Merritt Island, Florida, at channel marker 24, about seven miles from Port Canaveral.

Marker 37 Marina

Marina on the Gulf Intracoastal Waterway beneath the JFK Causeway, on North Padre Island near Corpus Christi, with direct access to the Laguna Madre.

Marker 7 Marina

Marina and tackle shop on the west bank of the lower Niantic River at East Lyme, Connecticut.

Markham's Marina, Houghton

Marina on the Houghton waterfront on the south shore of Portage Lake, part of the Keweenaw Waterway crossing Michigan's Upper Peninsula.

Marquette Yacht Club

Sailing club in Marquette's Lower Harbour, on Lake Superior in Michigan's Upper Peninsula. Berths share the harbour basin with the city marina.

Marquette Yacht Club

Members' yacht club marina on Burns Waterway at Portage, Indiana, with floating-dock access to Lake Michigan.

Marquis Bayou Marina

Deep-water marina off the Blackwater River at Milton, in the Florida Panhandle.

Hutchinson Island Marina

Resort marina on Hutchinson Island at Stuart, set between the Indian River and the Atlantic, with around 80 berths for boats up to 125 feet.

Marston's Marina

Small-boat marina on the tidal Saco River at Saco, Maine, about 3.5 miles upriver from the Camp Ellis entrance and roughly 2 miles below the town of Saco.

Martin Marina

Downtown Olympia marina on Budd Inlet, alongside the Percival Landing boardwalk, monthly moorage only since 1979.

Martin's Marina Inc

Family marina on the St Lawrence River at Cape Vincent, New York, where Lake Ontario drains into the river. Established in 1969.

Tidesides Marine

Full-service marina on the west side of Sodus Bay, one mile south of Sodus Point village on the southern shore of Lake Ontario.

Martinez Marina

Municipal marina of 332 berths on the Carquinez Strait, between San Pablo Bay and the Sacramento River delta, eastern San Francisco Bay.

Maryland Yacht Club and Marina

Yacht club with a marina at the entrance to Rock Creek at Pasadena, where the creek meets the Patapsco River near Baltimore.

Masonboro Yacht Club

Private marina on Whiskey Creek between Wrightsville Beach and Carolina Beach, North Carolina, at ICW mile 288.

Masons Island Marina

Full-service marina in a sheltered cove off the Mystic River at Mason's Island, Mystic, Connecticut, with 120 floating berths and 20 moorings.

Mason's Marina

Private marina and boatyard on the west shore of Bodega Harbor, Sonoma County, California.

Massabesic Yacht Club

Members' sailing club on Lake Massabesic at Auburn, New Hampshire, on Route 28A about a third of a mile south of the Route 121 rotary.

Massey MArina

County-run marina and park on Mississippi River Pool 12, five miles south of Dubuque, Iowa, off Highway 52 and the Great River Road.

Matagorda Harbor

Harbour at Matagorda on the Gulf Intracoastal Waterway, run by the Port of Bay City on the Texas coast.

Mattawoman Creek entrance

Anchorage at the mouth of Mattawoman Creek where it opens onto the Potomac River, near Indian Head, Maryland.

• Sheltered N, NE, E, SW, S, SE

Matt's Marina

Full-service marina in Seaford Harbor on the South Shore of Long Island, New York, off South Oyster Bay.

Mattawomen Creek

Anchorage in a tidal Potomac River tributary near Indian Head, Maryland, around 30 miles south of Washington.

• Sheltered NW, N, NE, W, E, S, SE

Matthews Point Marina

Marina on Clubfoot Creek near its mouth on the Neuse River, off NC Highway 101 east of Havelock, North Carolina.

Mattituck Commercial Dock

Bulkhead dock inside Mattituck Inlet on the north shore of Long Island, the only harbour between Port Jefferson and Greenport.

Matunuck Marina

Marina at East Matunuck on Point Judith Pond, off Succotash Road in South Kingstown, Rhode Island, west of Galilee.

Maximo Marina

Full-service marina at the southern tip of St Petersburg, Florida, near the mouth of Tampa Bay and the Skyway.

Mayo Ridge Marina

Small marina on Selby Bay off the South River, near Mayo in Edgewater, Maryland.