Head over to the coast and head north. There aren't many towns but plenty of camping. The Hoh rainforest is as cool as it gets. 5' diameter trees that fell over and 2' diameter trees growing on top of them. I don't think there's anywhere like it. Keep your eye out for giant banana slugs. I...
If you are going to Port Angeles, you might consider going a little farther to Port Townsend. It is a cool victorian town. I lived there a year while I attended the Northwest School of Wooden Boatbuilding. This is the town the movie, An Officer and a Gentleman was filmed in. The base in that...