Not a campground but since it has RV parking available I figured it is worth a mention. It's halfway between Aberdeen and Westport, right on the highway. Beautiful grounds, including mini golf, "wizard chess" (large pieces, outdoor game, not actually life size but tennis court size), a maze, plants for sale, and a small but immaculately groomed dog park. Dogs welcome on leash in other outdoor areas and in the patio dining. Indoors, dining room and a very nice gift shop. (Mentioning dogs not just because I have them, but because as a traveler with dogs sometimes leaving them in the car isn't an option- for example, there is no shade for parking at the Winery.)
Wine tastings, wine available with meals. The food was great. M-Th they have $1 off drinks and appetizers from 3-5 plus several dinner specials (yes, early for some of us!) They also serve breakfast. And kid friendly. Downside- last seating at 6:30 PM so everything is early-bird-special if you are used to dining late.
We'll go back. In fact, we plan to stop for breakfast on the way home. Being able to pull the trailer in easily is a major plus, and I want to try the Hawaiian Cinnamon Roll.