Boat Slips, Moorings & Racks in Chatham, Cape Cod
Seasonal and transient dockage on the southeast “elbow” of Cape Cod — slips, moorings, and rack storage with fast, deep-water access to Nantucket Sound, the Atlantic, and the region’s best fishing and cruising grounds. Rated 4.8 on Google by Chatham boaters.
Seasonal Boat Slips
Our protected basin offers seasonal slips for boats up to 55 feet, with power and water available. Seasonal slip holders get priority access to our fuel dock, service department, and launch — plus a friendly, family-run atmosphere. Space is limited and fills early each spring, so reserve ahead. Please fill out an online request for availability, slip sizes, and seasonal rates.
Moorings
Rental moorings in the Chatham Harbor area with skiff and launch access to your boat. Moorings are an economical option and are always in high demand — the earlier you reserve, the better your chances of a spot for the season.
Rack & Dry Storage
Dry rack storage keeps your boat clean, secure, and ready to launch all season. Our crew handles the launching and hauling — just come down to the marina and we’ll have your boat in the water within moments. No trailering, no ramp lines. When the season ends, ask about winter boat storage on Cape Cod — haul-out, winterization and storage in one place. Ask us about in-and-out rack service by filling out a request online here.
Transient Dockage
Cruising the Cape? We welcome transient boats up to 55 feet for a night or a week, with an unbeatable location just inside the Chatham inlet. We monitor VHF channel 80 — hail us on approach and we’ll talk you in with current conditions. Reserve transient dockage online for instant confirmation, or see our transient dock reservations page.
Why Dock at Outermost Harbor?
- Closest full-service marina to the Chatham inlet, Monomoy, and the offshore fishing grounds
- Reliable deep-water access at most tides
- On-site fuel dock, certified Yamaha & Mercury marine service, and a ship’s store
- Buying a boat through us? Boats bought here go into open spaces before they go to the waitlist — email our sales team if you need both
- Family-owned and rated 4.8 on Google
Frequently Asked Questions
Do you offer both seasonal and nightly (transient) dockage?
Yes. We offer seasonal slips, moorings, and rack storage for the season, plus transient dockage by the night for visiting boats up to 55 feet.
How large a boat can you accommodate?
We dock boats up to 55 feet. Contact us and we’ll help match your vessel to the right slip or mooring.
Can I reserve dockage online?
Transient dockage can be booked online with instant confirmation. For seasonal slips, moorings, and storage, contact us for current availability and rates.
Where is the marina located?
Outermost Harbor Marine is at 83 Seagull Road, Chatham, MA 02633, on the southeast elbow of Cape Cod with quick access to Nantucket Sound and the Atlantic.
What happens to my boat if a hurricane is coming?
When a hurricane or major storm threatens Chatham, we may haul boats out to protect them and the docks. Our Storm Preparedness Policy explains when we act and what it costs, and you can sign up for a storm haul-out ahead of time, including water pickup from a mooring.
Check Availability & Book Online →
Questions about seasonal slips, moorings, or storage? Contact us or call (508) 945-2030.