Located at the western end of Fishers Island Sound, the Thames (pronounced thaymes) River, Green Harbor and the city of New London are 20 miles northwest of Point Montauk (Long Island) and about 14 miles northeast of the Connecticut River at Saybrook. Originally settled by explorers intent on bringing the homeland (London and the Thames) to America, New London is a popular cruising destination on the friendly and easy-to-navigate Thames River.

The majority of the marinas and marine facilities are located up the river on Greens Harbor in the city of New London. Green Harbor is located on the west shore of the Thames River about two and a half miles up from the river entrance at Long Island Sound.

Use NOAA Chart 12372.

From Long island Sound west of Fishers Island Sound, pick up flashing green buoy “1” and flashing red buoy “2” at the beginning of the approach channel to New London Harbor. Once you have cleared the two aids to navigation, set a course for flashing green “3” and red nun “4” farther near Frank Ledge. Flashing green “5” and flashing red buoy “6” come next past Hobs Island.

Green Harbor will open up to port about a half-mile past flashing green buoy “5.” First you will see an extensive mooring field, which is followed by the four marina facilities located here. Two of these marinas accept transient guests and have fuel. One of the marinas has haul-out and repair facilities.

Local Notices to Mariners are now exclusively available online from the U.S. Coast Guard.

City of New London

New London Calendar of Events