Jackie - Vista Park is one of our favorites. We have been going there for about 14 years. It has become quite popular. We were going to drive out there a couple of weekends ago to figure out which spaces to reserve this summer but the roads were closed due to mud slides.
We haven't been any further south than Nehalem Bay, OR. And we haven't been any further north than Cape Disappointment in Ilwaco, WA. We still have a lot of exploring to do.