I gave you a couple of ideas for St. Pks. to stay at, now here is some things to do in different places. There are several private parks where you can stay, if you want ocean views, you pretty much have to use private.
Things to do on the Coast(North of Winchester Bay);
All the state parks and picnic area/day use areas for beach combing
Winchester Bay for RV Park and County campgrounds, dunes
Florence for the jetties and the dunes, camping
Old Town Florence for Moโs & BJโs(ice cream), shopping and camping
Sea Lion Caves for the view of Heceta Head Light and caves, day use
Cape Perpetua/Devils Churn
Yachats for shopping and views, beach combing, day use, kiting
Waldport for crabbing, rent a ring and crab for free, rental store will cook and clean your catch
Bay Shore for beach combing, kiting
Newport for the Aquarium, Old Town, shopping and the Brewery, kiting
Depot Bay for the Sea Hag's fish and chowder
Lincoln City for the Factory Stores and Glass studios south side of town, blow your own glass float.
Otis for the Cafรฉ, best breakfast on coast that is cooked by someone else
Tillimook for the Cheese factory and ice cream
"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