Washington Camping

Camping in Washington State?
Where is a good place to go camping with your family? Although you must be able to rent a cottage for 5 and then have RV spots with full connections nearby. I can not find anywhere.
Depends on where I live in Western Australia in the Olympic Peninsula and there are many places in western Wa. Look at Washington State Parks and if interested in staying around to find the area of Lake Hood Canal Cushman, have everything you are looking for.
TAU GAMMA PHI/SIGMA SEATTLE WASHINGTON U.S.A. ANNUAL FAMILY CAMPING PART 1