Grafton Harbor: A Great Loop Marina Stop in Grafton, IL
Grafton Harbor: A Must-Stop Destination on America’s Great Loop
For thousands of boaters each year, completing America’s Great Loop is more than just a boating trip—it’s the adventure of a lifetime. Stretching approximately 6,000 miles through rivers, lakes, canals, and coastal waterways, the Great Loop takes cruisers through some of the most beautiful destinations in North America.
As Loopers make their way along the Illinois River, Grafton Harbor has become one of those memorable stops that many look forward to. Whether you’re spending a single night or planning a longer stay, Grafton Harbor offers everything you need to relax, refuel, and experience the charm of one of the Midwest’s most unique river towns.
A Prime Location on the Great Loop
Conveniently located in Grafton, Illinois, just minutes from the confluence of the Mississippi and Illinois Rivers, Grafton Harbor is perfectly positioned for Loopers traveling north or south.
Our protected marina provides a safe and comfortable place to dock while giving you easy access to one of the most scenic waterfront communities on the Great Loop.
Dock with Confidence
Grafton Harbor offers modern floating docks designed to accommodate a wide range of cruising vessels. Our marina features:
- Spacious transient slips
- Wide, easy-access docks
- Shore power and water hookups
- Fuel dock
- Pump-out service available right at your slip—a convenience few marinas can offer
- Clean restrooms and shower facilities
- Friendly staff ready to assist with your arrival
Whether you’re cruising in a trawler, motor yacht, cruiser, or sailboat, you’ll find the amenities needed to make your stay comfortable.
Refuel More Than Just Your Boat
Long days on the water deserve great food and a relaxing atmosphere.

The ArrrBar
Enjoy drinks at The ArrrBar, where you can unwind with fellow Loopers while taking in beautiful river views. It’s the perfect place to swap stories and meet new friends throughout the season.
Ship Store Provisions
Need provisions? Visit our fully stocked Ship Store featuring:
- Boating supplies
- Engine oil and maintenance products
- Dock lines and safety equipment
- Snacks and beverages
- Apparel and souvenirs
- Ice, essentials, and more
If you don’t see what you need, our team can often special order it for quick delivery.
Concierge Services Designed for Loopers
One of the biggest challenges of extended cruising is coordinating supplies and maintenance.
That’s why Grafton Harbor offers concierge services to help make your stop as easy as possible.
Need groceries stocked before you arrive? Looking for recommendations on local attractions? Need assistance scheduling maintenance? Our staff is here to help make your stay stress-free so you can spend more time enjoying your journey.

Explore Historic Grafton Near the Marina
One of the reasons Loopers love stopping at Grafton Harbor is the town itself.
Just steps from the marina, you’ll discover:
- Unique local shops
- Restaurants and wineries
- Scenic riverfront views
- Historic attractions
- Local festivals and live music
- Eagle watching during the winter months
Whether you’re exploring by foot or taking a golf cart around town, there’s always something happening in Grafton.
Stay Longer Than Planned
Many Great Loop travelers arrive expecting to stay one night and end up extending their visit.
With comfortable amenities, welcoming hospitality, nearby attractions, and easy access to everything Grafton has to offer, it’s easy to understand why.
Take advantage of the opportunity to rest, catch up on laundry, enjoy local dining, explore the town, and prepare for the next leg of your journey.
Hospitality That Keeps Loopers Coming Back
At Grafton Harbor, we understand that Great Loop travelers aren’t just passing through—they’re creating memories that will last a lifetime.
Our team is committed to making every guest feel welcome from the moment they arrive until it’s time to cast off for the next destination. Whether you need fuel, provisions, maintenance recommendations, local advice, or simply a warm welcome after a long day on the river, we’re here to help.
Make Grafton Harbor Part of Your Great Loop Adventure
The Great Loop is about discovering incredible places, meeting wonderful people, and enjoying unforgettable experiences along the way. Grafton Harbor proudly offers all three.
If you’re planning your Great Loop itinerary, be sure to include Grafton Harbor as one of your must-stop destinations. We look forward to welcoming you, helping you recharge, and sending you off ready for the next chapter of your adventure.
Safe travels, and we’ll see you at the docks! ⚓








