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Marinas and Harbors in Groton, CT

9 of the 22 marinas and boating businesses we list in Groton are marinas, harbors, or boat docks.

Marinas and docks range from basic public launch ramps with tie-up slips to full-service facilities offering fuel desks, haul-out yards, and winter storage. Dockage options vary between daily transient slips, seasonal rentals, and dry-stack storage, while amenities differ greatly regarding power hookups, pump-out stations, and shore facilities. Looking at a map pin will not tell you the draft limits, slip dimensions, or whether a location caters to daily boaters versus long-term liveaboards.

  1. Noank Shipyard

    145 Pearl St, Groton, CT 06340

    Monday–Friday - 9am–5pm

    Fuel dockService & repairsDry storage
    Call Website Directions

  2. Pine Island Marina

    916R Shennecossett Rd, Groton, CT 06340

    Transient slipsService & repairsDry storage
    Call Website Directions

  3. Spicer's Marina

    93 Marsh Rd, Groton, CT 06340

    Fuel dockService & repairsDry storage
    Call Website Directions

  4. Noank Village Boatyard

    38 Bayside Ave, Groton, CT 06340

    Transient slipsDry storage
    Call Website Directions

  5. Shennecossett Yacht Club

    1010 Shennecossett Rd, Groton, CT 06340

    Fuel dock
    Call Website Directions

  6. Thames Inn and Marina

    193 Thames St, Groton, CT 06340

    Call Website Directions

  7. Maxwell Boatyard

    135 Pearl St, Groton, CT 06340

    Call Website Directions

  8. Groton Oil Marina

    53 Thames St, Groton, CT 06340

    Call Directions

  9. Beebe Cove Marina

    55 Spicer Ave, Groton, CT 06340-5660

    Call Directions
Check slip dimensions. Always confirm depth clearances, beam limits, and power amperage (30-amp vs. 50-amp) directly with the dockmaster before reserving a transient or seasonal slip.

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Good to know

What is the difference between transient and seasonal slips?

Transient slips are rented on a short-term basis, usually by the night or week, for boaters traveling through an area. Seasonal slips are leased for several months or a full year, giving local boaters a dedicated home port. Availability for transient docking often depends on peak holiday demand and advance reservations.

What services are typically included in dockage fees?

Basic slip rentals usually include water access and secure tie-ups, while electricity may be billed separately or metered based on consumption. Full-service marinas often include Wi-Fi, pump-out access, and shower facilities, whereas basic boat docks may only provide a place to tie off.

How much does it cost to keep a boat at a marina?

Pricing is typically calculated per foot of the vessel, measured by length overall. Transient rates often range from $2 to $5 per foot per night, while seasonal leases can cost anywhere from several hundred to several thousand dollars depending on the region and included amenities.