In Washington and Oregon you will find the public campgrounds pretty full but not impossible, private campgrounds should yield sites but still pretty full. Starting in the North, Deception Pass is great, lots of beachy things to do. Hurricane Ridge and all of the Olympic Peninsula, Ho Rainforest and Kala Loch(Clay lock), once again lots of beachy stuff and steep mountains (not drivable ones) and the town where the vampire movies were filmed(forgot the name). In Oregon don't miss are Ft Stevens Campground and Ft Clapsop from the Corps of Discovery(Lewis and Clark trip to the Pacific) Tillamook for that great ice cream, Newport for the Marine Science Center, Aquarium where Willie was before he was shipped home, the Rogue Brewery for a hamburger, Lincoln City for glass blowing shops and Outlet Shops. Sealion Caves north of Florence, dunes south of Florence, Camping at Winchester Bay. Everything down to the boarder.
E/O Lincoln City about five miles is OTIS, very small, gas station, drive thru coffee stand, gift shop and the crowning jewel, The Otis Cafรฉ. Breakfast is fantastic, don't order a full order of the German Fried Potatoes. Half order will feed two small folks.
If you want I'll go on for another thirty days worth of activities in those two states. Just send a pre addressed stamped envelop for a half ream of paper and I'll send more.
"I travel not to go anywhere, but to go. I travel for travel's sake. The great affair is to go". R. L. Stevenson
David Bishop
2002 Winnebago Adventurer 32V
2009 GMC Canyon
Roadmaster 5000
BrakeBuddy Classic II