Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility ๐Ÿšค Full Service Marina Est. Slips ~40 Water Lake Est. Parking ~30 spaces Lot Size Medium (50โ€“150) Lot Type Surface Confidence High

Medium-sized marina with covered slips along a lake shoreline, surrounded by wooded areas and several buildings, featuring unpaved surface parking with no visible vehicles.

Aerial view of Onekama Marine
Great Lakes

Onekama Marine

Onekama Township, MI

Onekama Marine is located on beautiful Portage Lake, a 2,500 acre all-sports lake with a channel to Lake Michigan. It is a family owned and operated business providing quality products and service to Northern Michigan boaters since 1963.

โ˜…โ˜…โ˜…โ˜…โ˜… 4.6 (69 reviews on Google) View on Google Maps โ†—
Address 4378 Crescent Beach Rd, Onekama, MI 49675, USA
Capacity ~40 slips
Coordinates 44.3525, -86.2155

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 โ€” allowing permitted vehicles through via transponder or keycard while logging all access events.