Millersylvania State Park
October 2026
About
Millersylvania State Park is an 842-acre camping park with 3,300 feet of freshwater shoreline on Deep Lake. The park has two swimming beaches, miles of forested hiking and biking trails, boat launches, non-motorized watercraft rentals (kayaks, paddleboards, pedal boats) and abundant fishing. The state capital is a few miles north of the park.
Is Millersylvania 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 Millersylvania State Park in Olympia, 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 Millersylvania State Park for cancellations is the paid part.