About Great Peconic Bay Marina
Great Peconic Bay Marina offers a robust full-service marina experience combining excellent maintenance capabilities, family-friendly amenities (beach, BBQ, playground), secure year-round storage, modern facilities, and a warm, community-driven atmosphere. It’s perfect for both seasonal and transient boaters looking for convenience and quality on Long Island's North Fork. Address: 13 Washington Ave, South Jamesport, NY 11970 Office Hours: Tue–Sat 8 AM–5 PM, Sun 9 AM–3 PM; closed Mondays Holiday Closure: Dec 22–Jan 13 (emergency contact available) Close to local attractions: vineyards, breweries, Long Island Aquarium, parks, and restaurants (e.g., Grana, Junda’s) Events & Community Features Hosts community events: movie nights, boater's bash, cornhole tournaments Friendly, family-run atmosphere operating since 1978 Security & Access Secure dry storage with gated access and surveillance cameras 24/7 CCTV coverage and after-hours access to the marina Amenities & On‑Site Extras Private sandy beach, picnic areas with BBQ grills, and a playground Newly renovated restrooms, showers, and dressing rooms On‑site ship store stocked with parts, accessories, soda, ice Pump‑out station open 24/7 Wi‑Fi, ice, propane exchange, and pet-friendly environment Repair, Maintenance & Haul-Out Full service yard with certified mechanics for hull, engine, electrical, canvas, and more Two travel lifts: 25‑ton and 50‑ton, dry storage (indoor/outdoor) year-round under surveillance 175 wet slips (seasonal & transient), accommodating boats up to 65 ft LOA Floating docks with potable water, free Wi‑Fi, and 30 A/50 A shore power 24/7 pump‑out station and gas + diesel fuel dock



Installations
Port Information
Téléphone
Berth Sizes
Profondeur à la marée basse moyenne
Manœuvrabilité
Channel Marking
Port d'entrée
Overseas Visitor Berths
Type de quai
Style Side To
Style Stern To
Tidal Flow
Active Winter
Weather Forecast
- NE 6–8 knots.
- −3°C
- Cloudy
- N 7 knots decreasing to 4 knots.
- −4 to −1°C
- Calm sea
- UV Index: 1 - Low
- Partly cloudy
- Light and variable.
- −3 to −1°C
- Calm sea
- UV Index: 0 - Low
- Cloudy