Whidbey Island-Fort Casey State Park

One day trip from Mukilteo to Whidbey Island. Fort Casey State Park is located on Whidbey Island, in Island County, Washington state. Admiralty Inlet was considered so strategic to the defense of Puget Sound in the 1890s that three forts, Fort Casey on Whidbey Island, Fort Flagler on Marrowstone Island, and Fort Worden at Port…