Fort Casey State Park
October 2026
About
Fort Casey Historical State Park is a 998-acre marine camping park with 10,810 feet of saltwater shoreline on Puget Sound (Admiralty Inlet); it includes Keystone Spit, a 2-mile stretch of land separating Admiralty Inlet and Crocket Lake. Fort Casey, Fort Worden and Fort Flagler together were known as the “Triangle of Fire,” a trio of strategically placed fortifications defending the entrance to the Puget Sound at the turn of the 20th Century.
Is Fort Casey State Park fully booked?
A campground showing no availability is almost never full for good. People cancel — plans change, weather turns, someone books three weekends and keeps one — and the site goes straight back into the booking system, usually without warning and often at odd hours. The reason sold-out campgrounds feel impossible is not that sites never free up; it is that nobody is watching at the moment they do.
CampHawk watches Fort Casey State Park in Coupeville, WA for you. We recheck it every 15 seconds, around the clock, and the moment a site opens we send a text, an email and a push notification, with a link straight to the booking page.
Searching is free and needs no account — the calendar above is live right now. Watching Fort Casey State Park for cancellations is the paid part.