Seaport Marine
Yacht & sportfish marina · Mystic River
123 Harbor Dr, Mystic, Connecticut
Overview
Seaport Marine is a yacht & sportfish marina in Mystic, Connecticut, with wet slips for vessels up to 80 feet. Positioned on Mystic River with access to Sound, River, Seaport Marine serves boaters working Mystic to Fishers Island and the broader Mystic cruising area. The marina is configured for transient cruisers, sportfish owners, and annual slip holders, with shore power, fresh water, and dockmaster support on site.
Mystic's working seaport, historic shipyards, and protected river make it one of New England's most photogenic and active harbors.
Location & waterway access
Waterway
Mystic River
Access
Sound, River
Typical water depth
10–14 ft MLW
Hurricane protection
Standard exposure
Bridges
Mystic River bascule bridge opens on schedule.
Dockage options
Includes wet slips, transient and monthly dockage, with yacht dockage for larger vessels.
Boat compatibility
Maximum LOA accommodated: 80 ft. Confirm beam, draft, and air clearance when reserving.
Amenities
- Parking
- Pet Friendly
- Valet Docking
- Concierge
- Yacht Club
- Pool
- Covered Slips
- 24/7 Security
Shore power & utilities
Transient, monthly & liveaboard
Transient docking
✓ Available
Overnight and weekly slips for cruising boaters.
Monthly slips
✓ Available
Monthly dockage typically $22 – $46 / ft / month (seasonal).
Liveaboard slips
Limited availability
Year-round liveaboard with marina approval.
Pricing guidance
- Monthly slip estimate
- $22 – $46 / ft / month (seasonal)
- Transient estimate
- $22 – $46 (transient nightly rates vary by season)
- Yacht dockage
- Yacht dockage for 80–80+ ft typically priced at the upper end of $22 – $46 / ft / month (seasonal); concierge rates available.
- Seasonality
- Peak May–October.
Pricing may vary by season, boat length, and electric metering. Contact marina for exact availability and pricing.
See the full wet slip pricing guide, monthly slip costs, and transient slip pricing.
Local boating context
Nearby boating destinations
- • Mystic Seaport
- • Fishers Island
- • Watch Hill
Popular cruising routes
- • Mystic to Fishers Island
- • Watch Hill day sail
- • Block Island run
Nearby fuel stops
- • Seaport Marine fuel
- • Brewer Mystic fuel
Seasonality
Peak May–October.