Awesome campground near the river
This place was my favorite campsite while visiting the Olympic peninsula. Super close to Ruby beach and Hoh rainforest.
There are only a few sites, so I imagine in the busy season, you'll need to get there early. The road is gravel, but manageable for most Rigs. I would be hesitant to bring a large RV or Trailer, because the turn around is a bit tight.
There is a pit toilet, but no other services. There is a campsite next the outhouse, that is reserved for until 6pm for handicap campers. Pack in, pack out. Verizon service was slow.