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 ~150 Water Ocean/Bay Est. Parking ~120 spaces Lot Size Medium (50–150) Lot Type Surface (Striped) Confidence High

Large marina with extensive docks, multiple buildings including possible clubhouse, and a medium-sized striped surface parking lot with visible vehicles adjacent to the waterfront.

Aerial view of Coast Guard Basin
Atlantic Coast

Coast Guard Basin

Monroe County, FL

Coast Guard Basin is a marina located in Monroe County, Florida, specifically in Key West on the Gulf Coast, where it is situated within the sheltered waters of the Florida Keys, offering protection from the open Gulf of Mexico. This marina serves recreational boating and sailing activities in the region, catering to enthusiasts exploring the nearby coastal waters and barrier islands. It is positioned in an area renowned for its tropical maritime environment, making it a gateway for Gulf Coast adventures.

Location Monroe County, Monroe County, Florida
Capacity ~150 slips
Coordinates 24.7103, -81.1063

Nearby Marinas in Florida

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.