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Williams Island Marina
A protected, upscale stop tucked inside the private Williams Island community in Aventura—just off the ICW via the Ojus Canal. Ideal for a calm, resort-style overnight between Miami and Fort Lauderdale.
Williams Island Marina is a well-protected, basin-style marina located inside the private Williams Island community in Aventura, Florida. Set on the Ojus Canal just off Dumfounding Bay and the Intracoastal Waterway (ICW), it’s a convenient midpoint for boaters running between Miami and Fort Lauderdale.
Boaters choose this marina for its calmer waters (less wake than open-ICW docks) and access to resort-style amenities on the island—think spa/fitness, tennis, and on-site dining. Transient dockage is very limited, so planning ahead is key.
Use the navigation notes below to time your approach, confirm depths for your draft, and coordinate gate/parking logistics in this gated community before you arrive.
Marina Information
Find This Marina
Address
4100 Island Boulevard #CU-2, Aventura, FL 33160
Parking
Controlled/limited on-site parking within a gated private community. Coordinate gate entry and guest parking instructions with the dock office/concierge when you book.
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About This Marina
Williams Island Marina is a 106-slip facility tucked inside the luxury, private-club atmosphere of Williams Island. The marina sits just west of the ICW on the Ojus Canal, offering a notably calmer, more protected docking environment than many exposed ICW locations. It’s best suited for boaters looking for a quiet, upscale stay with strong shoreside amenities—while keeping in mind that transient availability is extremely limited (some guides report only a few guest slips, up to 60’).
Nearby boat destinations (easy runs from the marina)
Haulover Inlet (Ocean Access)
≈ 15–30 minHead toward Haulover for offshore runs when conditions allow. Check inlet conditions and plan for currents, traffic, and weather windows.
Biscayne Bay
≈ 45–90 minRun south on the ICW and transition into Biscayne Bay for protected-water cruising, sightseeing, and popular sandbar days.
No Name Harbor / Key Biscayne area
≈ 1.5–2.5 hrsA classic South Florida day trip. Time your route around bridge schedules (if applicable), weekend congestion, and afternoon weather.
Fort Lauderdale waterfront / Port Everglades area
≈ 1–2 hrsCruise north on the ICW for waterfront views and dining options throughout the Fort Lauderdale stretch.
Dock-and-dine ideas nearby
Aventura / Sunny Isles waterfront restaurants (ICW corridor)
≈ 15–45 min by boat (varies by stop)Fort Lauderdale ICW restaurant docks
≈ 1–2 hrs by boatBiscayne Bay waterfront stops
≈ 45–90 min by boatAvailable Boats Nearby
Lupo Two
Seaduction 36
55 Searay
Cranchi 46
Lovely Day
Top Shelf
Luxury Catamaran at Bayview
Giselle at Haulover
Piscis
Piscis
Sandy Sea at Aventura
Sacred Space
Lupo Two
Seaduction 36
55 Searay
Cranchi 46
Lovely Day
Top Shelf
Luxury Catamaran at Bayview
Giselle at Haulover
Piscis
Piscis
Sandy Sea at Aventura
Sacred Space
Arrival & approach info
Explore Aventura by boat with BoatPass
BoatPass makes it easy to spend more time on the water and less time planning logistics. With BoatPass, membership covers captain, fuel, and docking on all trips—so you can focus on cruising the ICW, heading out Haulover Inlet, or running south toward Biscayne Bay.
Frequently Asked Questions
Williams Island Marina is inside the private Williams Island community in Aventura, Florida, on the Ojus Canal just off Dumfounding Bay and the Intracoastal Waterway (ICW).
25.94036, -80.13645. Some directories may show slightly different points (often for an entrance/centroid), so confirm your final approach in your chartplotter.
From the ICW near AIWW mile marker ~1076.6, turn west into the Ojus Canal at/near Green Marker #55 and proceed with Williams Island on starboard. Hail the dockmaster on VHF before entering for slip assignment.
Monitor VHF 16 and use working channel 10 to coordinate arrival and docking.
Transient dockage is very limited—one guide lists only a few transient slips (max 60’). Reserve early and consider nearby alternatives if you’re traveling during peak periods.
Fuel is not typically a pull-up fuel dock; guides note fuel may be available by delivery with advance notice and a service fee. Confirm timing and pricing when you book.
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