Maps of historic walking tours are available from the visitors bureau at 904 Potter Street. These include tours of stately Victorian mansions in the Eldridge and Sehome districts, and of Fairhaven [1], with its 1880s mansions and old brick storefronts.
The Squalicum Harbor tour is along the two-mile promenade past pleasure and commercial boats and ships. This is the second-largest marina in the state; only Shilshole Marina in Seattle [2] is bigger.
Links:
[1] http://www.moon.com/destinations/washington/north-puget-sound/bellingham/sights/fairhaven
[2] http://www.moon.com/destinations/washington/seattle