Washington State coastline?

I agree that Cape Disappointment will NOT disappoint. And Kalaloch is great. US 101 doesn't really follow the coast in WA as it does in OR but there are some really beautiful beaches if you're willing to drive or hike out to them.

Kalaloch

It kinda depends on the size of your rig. There are a number of parks in the Long Beach area and then none really till you get up past Raymond,then there are a couple at Tokeland.One of those is pretty nice and the other is kinda nice,but basically a fishing camp. From there is Grayland SP,then Twin Harbors SP which is for smaller rigs. Lot's of tent camping and a few 30' and less h/u sites. There is one or two in Westport. Hoquiam River is very nice and then you're heading out to Ocean Shores with Ocean City SP which is hard to get into. Up from there are several member campgrounds,which will usually let you stay there and severale of those are Passport America.There is a small grundgy one on Lake Quinalt and then Klaloch NP,no h/us. The one at Forks and one at Lapush are private and Mora is a NP cg with mostly small sites. Thewre is a private CG at Neah Bay and then you're in hog heaven from there into the Puget Sound area. If you're retired military,there is,I believe, a campground at Pacific Beach and on the ocean at Neah Bay.
OOPPSS,I forgot Pacific beach SP,almost impossible to get res there and Bogachiel River SP.
We've stayed at almost all of those over the years,with the exception of Klaloch and Bogachiel.

One of the big differences (we thought) was how the WA coastline roads are not all that close to the ocean. Usually a short walk to see massive piles of trees that had washed ashore. We did enjoy and hope to did the loop again someday.

Hey neighbor..

Kalaloch.

We camp a lot at both Cape Disappointment State Park and Grayland State Park.
Give both or either a try, you won't be disappointed...reservations are a must in the summer.