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 lakeside dock with several piers, scattered buildings, and a medium unpaved parking area with a few visible vehicles adjacent to wooded residential structures.

Aerial view of Custom Marine & Machine Service
Great Lakes

Custom Marine & Machine Service

Otsego Lake Township, MI

Custom Marine & Machine Service is a marina situated in Otsego Lake Township, Michigan, in the southwestern Lower Peninsula, where it benefits from proximity to the Great Lakes, specifically the Lake Michigan watershed via nearby rivers and inland waterways. This setting places it amid rolling hills and forested landscapes typical of Michigan's rural interior, offering access to freshwater boating in a region known for its natural beauty and recreational opportunities. The marina serves recreational boating and sailing enthusiasts exploring the Great Lakes area, catering to activities on local lakes, rivers, and potentially Lake Michigan itself.

Location Otsego Lake Township, Otsego County, Michigan
Capacity ~15 slips
Coordinates 44.9201, -84.6971

Nearby Marinas in Michigan

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.