Hey nasa42a (Frank, currently we're in Oregon, headed down 101 on the coast.It's so beautiful. Have you been?
One of our favorite California SP campgrounds is Elk Prairie Campground in Prairie Creek Redwoods SP. Actually any campground in the Redwoods is great but Elk Prairie has Roosevelt Elk that like to hang out in the meadow and even wander through the campground. They are NOT tame so keep your distance. There are some great trails to the beach, Fern Canyon, etc.