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



Servizi
Port Information
Telefono
Berth Sizes
Profondità alla Bassa Marea Media
Manovrabilità
Channel Marking
Porto di Entrata
Overseas Visitor Berths
Tipo di Molo
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