Registration opens May 15 for preschool and youth swim lessons at Red Oaks and Waterford Oaks waterparks. When: May 15 Time: 8 a.m.- 10:30 a.m. Where: Red Oaks Waterpark in Madison Heights or Waterford Oaks Activity Center in Waterford. Also, online beginning May 17 on DestinationOakland.com. Cost: $50/student/session for Oakland County residents. $60/student/session for non-residents. …