Bring your kids and grandkids and their bikes to the Slide Ride at Portland’s Creston Park, 4454 S.E. Powell Blvd., Portland. Meet at the playground 10:30 to 11:30 a.m. Mondays June 19 to July 3 near the Francis Street entrance to group up. Look for clowns Olive and Dingo riding tall bicycles. Grown-ups should come prepared to supervise children as they ride around the quarter-mile loop around the park and take playground breaks. Bring helmets, snacks and water. The event is free but donations are welcome.