If you take the ferry to Port Townsend - a wonderful little town, stay at Fort Worden State Park (hookups). The beach sites are very nice and there are also some wooded sites. Then you can easily do a day trip to the Seattle waterfront area by driving your vehicle down toward Poulsbo and on to Bainbridge Island. Park your vehicle in the lot and take the short ferry ride. It will let you off at the Aquarium area. You can then pick up the monorail which will whisk you over the city to the Olympic Space Needle. Return via the monorail and then tour Pike Market and bring your purchases back on the ferry for your return. It makes for a very nice day and an easy hassle-free way of seeing the Seattle waterfront area.
From Port Townsend you can easily do another day trip to Hurricane Ridge in Olympic Nat'l Park at Port Angeles.
When you're ready to continue your trip from Port Townsend head south toward Poulsbo, Port Orchard and pick up I-5 at Tacoma.
Or you can drive around the Olympic Peninsula via 101 and continue to Astoria and 101 down the coast.
This whole trip is beautiful!
