Welcome to Great Peconic Bay Marina, your premier destination for all things marine! Nestled in the scenic South Jamesport, NY, we offer a comprehensive array of services designed to enhance your boating experience.

Our marina is staffed by Certified Marine Service Technicians, ensuring that your vessel receives the highest level of care and expertise. Whether you are looking to buy a new boat or need maintenance for your existing one, our dedicated team is here to assist you.

We provide a variety of dockage options for both seasonal and transient boaters, complete with 24/7 security for your peace of mind. Enjoy the convenience of winter storage and our fully stocked ship store for all your boating needs.

Take a break and relax in our picnic and BBQ area, or let the kids have fun in our playground. For those who enjoy the sun and sand, our private beach is the perfect getaway. Plus, we offer easy access to fuel to keep you on the water longer!

Visit us at 13 Washington Avenue, South Jamesport, NY 11970, and discover why Great Peconic Bay Marina is the ultimate choice for boat enthusiasts.

• Full-Service Marina
• Certified Marine Service Technicians
• Boat Sales
• Seasonal and Transient Dockage
• Winter Storage
• 24/7 Security
• Picnic & BBQ Area
• Playground
• Private Beach Access
• Fuel Services
• Fully Stocked Ship Store