Welcome to Marion, MA

Boating in Marion, MA Map View

The town dock at Marion, approached through a channel marked by private seasonal buoys, has reported depths of 4 to 5 feet alongside. Two boatyards at Marion provide limited guest moorings, electricity, gasoline, diesel fuel, water, ice, pump-out, launch ramp, marine lifts to 50 tons, boat storage and hull, engine and electronic repairs can be made. The harbormaster, who controls all mooring and anchoring in the harbor, monitors VHF-FM channel 68.
Navigation:
Click the “Map View” button above to see a chart of this harbor.
Sippican Harbor, scene of much pleasure-boat activity, makes into the north shore of Buzzards Bay about 3 miles southward of Wareham River. The harbor is the approach to Marion, a small town on the western shore. It is entered between Bird Island on the east and Converse Point on the west. Prominent features include the lighthouse on Bird Island and the conspicuous house and flagpole on Converse Point. The standpipe on Sippican Neck can also be seen for a considerable distance.
Mendells Rock and Seal Rocks are shoal, rocky areas, northward of Converse Point extending up to 0.2 mile off the west shore of the harbor. Planting Island, a peninsula extending about 0.6 mile northwesterly from Sippican Neck, is on the eastern side of the harbor. At Ram Island, off Marion, the passage between the island and the western shore is less than 275 yards wide. The currents in the narrow portion of the channel have considerable velocity at times. Little Island lies on the western side of the channel about 0.2 mile northwestward of Ram Island. The buoyed channel has a reported depth of about 12 feet from the entrance to Marion.
Blankinship Cove and Planting Island Cove, on the eastern side of Sippican Harbor, have a common entrance northward of Ram Island. They have general depths of 3 to 5 feet. Meadow Island separates the two coves. Gibbs Rock, marked by a private seasonal daybeacon, is 50 yards off the north point of Ram Island. A rock awash is charted 120 yards north of the daybeacon.
Hammett Cove in the northeastern part of Sippican Harbor is shallow and used only by small local craft. The approach to the cove is marked by private seasonal buoys. Charted obstructions are close westward of the buoys.

Coastal Stories See All

Is Offshore Construction Noise Stressing New England's Lobsters? WHOI Scientists Want to Know

9/8/2026

By Kiran Johnson, whoi.edu. As offshore wind farms multiply along the New England coast, a question with real consequences for one of the region’s most valuable fisheries is getting its first rigorous scientific investigation: does the noise from wind farm construction affect the American lobster? WHOI scientists are working alongside… SEE MORE

The future of fisheries-independent surveys will include traditional capture-based surveys as well as advanced technology such as acoustic, optical, and molecular tools deployed from survey vessels, uncrewed vehicles, and moored to the seafloor. Credit: NOAA Fisheries/Su Kim

Charting the Future of Fisheries-Independent Surveys

9/7/2026

Ocean Science

By fisheries.noaa.gov, fisheries.noaa.gov. Fisheries-independent surveys operate on dedicated survey vessels and are the foundation of sustainable fisheries management. They provide the consistent data on marine resources we need to inform stock assessments. These data are collected using a scientifically rigorous sampling framework and are used to set catch limits. As… SEE MORE

Coastally-trapped Kelvin waves, a signature of El Niño, traveled north along the West Coast during the 1997/1998 El Niño, as shown in a map of sea surface height anomalies. Darker reds show sea levels higher than normal, while darker blues show heights below normal. Scientists are now watching for similar waves to move up the West Coast this fall. Credit: Dillon Amaya/North Carolina State University

Ocean Indicators We’re Tracking for El Niño’s Arrival on the West Coast

9/5/2026

By fisheries.noaa.gov, fisheries.noaa.gov. Has El Niño reached the West Coast? You might think it has. After all, the ocean off Southern and Central California is unusually warm. But that is from a recent marine heatwave predates the current El Niño. Much of the Pacific Coast is experiencing relatively normal conditions while still… SEE MORE

Marion, MA

Welcome to Marion, MA

Monthly Tide Chart

Weather

Maps & Charts

Featured Local Businesses

Kingman Yacht Center

South Wharf Yacht Yard & Marina

Cape Yachts

Dartmouth Harbormaster

Concordia Company

Boating in Marion, MA Map View

In The Zone: The Sabre 51 Salon Express

Coastal Stories See All

Is Offshore Construction Noise Stressing New England's Lobsters? WHOI Scientists Want to Know

Charting the Future of Fisheries-Independent Surveys

Ocean Indicators We’re Tracking for El Niño’s Arrival on the West Coast

Photo Credits