Sun Lakes State Park
October 2026
About
Sun Lakes-Dry Falls State Park is a 4,027-acre camping park with 73,640 feet of freshwater shoreline at the foot of Dry Falls between Soap Lake and Coulee City. Carved by Ice Age floods more than 13,000 years ago, the former waterfall was once four times the size of Niagara Falls. Today, the 400-foot-high, 3.5-mile-wide cliff overlooks a big sky and a landscape of deep gorges and dark, reflective lakes. The park also offers trout fishing, hiking trails, and nine hole and miniature golf.
Is Sun Lakes 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 Sun Lakes State Park in Coulee City, 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 Sun Lakes State Park for cancellations is the paid part.