Parks & Recreation recreation@ci.oswego.or.us 380 A Avenue, PO Box 369, Lake Oswego, OR 97034 Phone (503) 636-9673 Register online or review class/activity information. The Summer 2002 issue of Discover Active Living was mailed on April 5. Classes are available now available for all forms of registration on a first-come, first-serve basis. Registrations online or by phone, fax, mail or walk-in.