According to The Oregonian, "Oregon state law is actually pretty lenient on nudity." [1] There are laws about behavior while nude. [2] The Portland World Naked Bike Ride is the world's largest iteration of the World Naked Bike Ride.
Sites allowing nude recreation include: Collins Beach on Sauvie Island, Mountaindale Sun Resort, Rooster Rock State Park, [3] and Squaw Mountain Ranch. [4] Clothing is optional at Breitenbush Hot Springs Retreat & Conference Center. [5]