Harbour

Boatworld Marina

Seattle, United StatesPacific Northwest
Type
Harbour

Freshwater marina on the western shore of Lake Union, Seattle, at 2450 Westlake Avenue North.

Guide

Approach and anchoring

Access from Puget Sound through the Hiram M. Chittenden Locks at Ballard, then 2 NM east along the Lake Washington Ship Canal. No tidal restriction once above the locks; Lake Union holds at about 6 m above sea level. Westlake Avenue runs along the shore as a landmark from the lake.

Practical

Open and covered berths from 3 m to 30 m. Shore power 30 and 50 amp, fresh water, heads, showers, laundry, kayak storage and lockers. Delicatessen and grocery on site. Part of the Boatworld group, which has run seven marinas on Lake Union and Portage Bay since 1982.

Ashore

South Lake Union neighbourhood within walking distance, with cafes and restaurants along Westlake Avenue. Museum of History and Industry at 860 Terry Avenue N, 1 km south on the lake shore. Lake Union Park and the Centre for Wooden Boats at the southern tip of the lake, 1.4 km on foot.

Key facts

Type
Harbour
Coordinates
47.63964, -122.34063 (47°38.38'N 122°20.44'W)
Town
Seattle
Country
United States
Updated
July 7, 2026

Getting there

Boatworld Marina lies at 47°38.38'N 122°20.44'W, that is 47.63964, -122.34063 in decimal degrees.

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