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 Large (150+) Lot Type Surface Confidence High

Large urban marina with extensive piers packed with boats, multiple adjacent buildings, and a sizable surface parking lot with visible vehicles along the waterfront.

Aerial view of AGC Marina
Pacific Coast

AGC Marina

Seattle, WA

AGC Marina is situated in Seattle, Washington, along the eastern shores of Puget Sound, a expansive inlet of the Pacific Ocean that features protected waters surrounded by forested islands and urban landscapes. This marina primarily serves recreational sailors and boaters who navigate the calm, inland waters of Puget Sound for activities such as day sailing, island hopping, and exploring the region's fjord-like channels. As a gateway on the Pacific Coast, it caters to those interested in the unique blend of urban Seattle's vibe and the natural beauty of the Northwest maritime environment.

Location Seattle, King County, Washington
Capacity ~150 slips
Coordinates 47.6298, -122.3394

Nearby Marinas in Washington

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.