There's a bridge for crossing between Whidbey Island and the mainland named Deception Pass. It's pretty there.
After Deception Pass and Mt. Vernon some of he worst traffic I've ridden in from Everett, Washington, through Seattle and Tacoma and Portland, Oregon. Average speed was around 38 MPH for at least a hundred miles.
The good news is that I met this cool guy at the hotel in Centralia, WA who was riding a nice old '84 Honda TransAlp. I haven't seen one of those for years.
Note the home-made cases and case rack. The left one is an old Halliburton briefcase, and the right one is another aluminum box he found somewhere.