Lake Sylvia State Park
October 2026
About
Lake Sylvia State Park is a wooded 252-acre camping park with 15,000 feet of freshwater shoreline. Set in a former logging camp above the historic town of Montesano, park life revolves around a large swimming and fishing lake that draws families to its shores all summer long, and the rustic charm of the park makes for excellent day and group camping trips.
Is Lake Sylvia 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 Lake Sylvia State Park in Montesano, 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 Lake Sylvia State Park for cancellations is the paid part.