We dry camped here in a spot by the lake. It was grassy with tons of room to spread out, pitch a tent, and access the many trails this park has to offer. The restrooms in this part of the park are older and could use a refresh. The site we had was right next to the check-in but we hardly noticed any extra noise. We drove through the other campgrounds where most of the RV's were parked. Not much privacy, but some did offer views of the beach. This is a huge park, with so many things to do. It is just a quick trip over the Astoria bridge to several other fun parks for kids or a visit to Oregon beach towns of Seaside and Cannon Beach.
This is a beautiful park and very well maintained. Lots of hiking trails, good shade, and nice wide spots. Not a lot of privacy, but you don't feel crowded. The only negative is the road noise from I-90. There is no escaping it, but you can minimize it by selecting a site as far away as possible. We were in site 44 which was pretty much as close to the freeway as you can get. The fan at night helped drown it out but no matter where you go in the park it is there. The lake, actually a wide spot in the river is very, very cold but calm. Great for kayaking or canoeing.