Downtown Miami’s premier marina offers the very best location and amenities for boaters, accommodating boats up to 110’ for both short- and long-term dockage. Sea Isle Marina features a full-service fuel station, convenience store, boat cleaners, competitive rates, and more. Located next to the Venetian Causeway on Biscayne Bay, with direct access to the ocean via the Intracoastal Waterway, this is the perfect spot for the avid fisherman or the casual boater.