Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🚤 Full Service Marina Est. Slips ~80 Water Ocean/Bay Est. Parking ~60 spaces Lot Size Medium (50–150) Lot Type Surface (Striped) Confidence High

Medium-sized marina with multiple piers, several clustered parking areas with visible vehicles, and adjacent buildings, likely supporting full services.

Aerial view of Shell Marina
Atlantic Coast

Shell Marina

Old Lyme, CT

Shell Marina is situated in Old Lyme, Connecticut, along the banks of the Connecticut River where it meets Long Island Sound on the Atlantic Coast, offering a picturesque setting amid coastal woodlands and historic New England landscapes. This marina primarily serves recreational boating and sailing enthusiasts, catering to vessels navigating the river, the sound, and nearby coastal waters of the northeastern United States. Its location provides access to both serene inland waterways and the open Atlantic, making it a gateway for regional maritime activities.

Location Old Lyme, Lower Connecticut River Valley Planning Region, Connecticut
Capacity ~80 slips
Coordinates 41.3147, -72.3451

Nearby Marinas in Connecticut

Marina Parking & Access Control

Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.