Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🚤 Full Service Marina Est. Slips ~60 Water Lake Confidence High

Enclosed marina basin with multiple parallel docks packed with boats and minimal adjacent land area for parking or buildings.

Aerial view of Island City Harbor
inland waterway

Island City Harbor

Sabula, IA

Island City Harbor is a marina nestled in Sabula, Iowa, a unique island town situated on the Mississippi River in the Upper Mississippi River Valley, offering direct access to this major inland waterway that flows along Iowa's eastern border. It serves recreational boaters and sailors navigating the river's scenic channels and locks, providing opportunities for exploring the region's historic riverine landscapes and diverse wildlife. This setting in the heart of the Driftless Area makes it a gateway for those seeking leisurely trips along the Upper Mississippi.

Location Sabula, Jackson County, Iowa
Capacity 140 slips
Coordinates 42.0602, -90.1708

Nearby Marinas in Iowa

Marina Parking & Access Control

Marinas typically need to separate slip holder parking from day-visitor parking, trailer areas, launch ramps, and secure dock access points. Modern facilities use barrier gate systems to enforce these zones automatically — allowing permitted vehicles through via transponder or keycard while logging all access events.