I just happened to be driving by Forks and had a day, so spent the night at Toleak Point
I usually go in the winter and maybe I'm the only one there, but it's crowded in August. There's about 2 miles of beach with Toleak Point at the middle. There were maybe 20 groups camped along that 2 miles.
Some at the top of the beach:
Some just back from the beach in the trees:
I walked to the end and found a spot, about 7 miles from Third Beach trailhead:
All campgrounds on the beach, like Kalaloch were full. North Quinalt and Graves Creek had vacancies mid week, but filled up about 4 PM on the weekends, about 15 miles from highway 101, half of it gravel.