Retreat Center - Millersylvania
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.
Phone: 360-902-8600
Is Retreat Center - Millersylvania 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 Retreat Center - Millersylvania 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 Retreat Center - Millersylvania for cancellations is the paid part.