Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🛶 Small Dock Est. Slips ~15 Water Lake Est. Parking ~30 spaces Lot Size Medium (50–150) Lot Type Surface Confidence High

Small marina dock with adjacent residential area and a modest surface parking lot containing several vehicles near the water's edge.

Aerial view of Gage Marine
Great Lakes

Gage Marine

Williams Bay, WI

Gage Marine is a marina located in Williams Bay, Wisconsin, along the shores of Geneva Lake, a scenic inland freshwater lake in the southeastern region of the state, near the Illinois border. This marina serves recreational boating and sailing enthusiasts on Geneva Lake, which is known for its calm waters and surrounding wooded landscapes. It caters to activities in this popular area for leisure boating in the Midwest.

Location Williams Bay, Walworth County, Wisconsin
Capacity ~15 slips
Coordinates 42.5730, -88.5404

Nearby Marinas in Wisconsin

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.