Notice Not affiliated with the Master Mariners Benevolent Association (MMBA) or any successor organization. v.2026.05
General Overview
Facility 🛶 Small Dock Est. Slips ~10 Water Lake Est. Parking ~25 spaces Lot Size Small (<50) Lot Type Surface Confidence High

Small marina with a few docks along a lake shoreline, surrounded by wooded areas and several buildings with adjacent gravel/surface parking showing multiple vehicles.

Aerial view of Thayer Boat Yard
Atlantic Coast

Thayer Boat Yard

North Haven, ME

Thayer Boat Yard is nestled on North Haven, a small island in Penobscot Bay, Maine, along the rugged Atlantic Coast, where it benefits from the region's sheltered waters and proximity to the open ocean. This marina serves recreational sailors and boaters, providing access to the bay's intricate network of islands and channels, ideal for cruising and exploring the historic waters of mid-coast Maine.

Location North Haven, Knox County, Maine
Capacity ~10 slips
Coordinates 44.1381, -68.8763

Nearby Marinas in Maine

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.