Level 4: Ages 4+ years. Stroke Development. Skills: Jump in and tread water 30 seconds; 15 yards backstroke and face in rythmic breathing. Kow the basics of breaststroke. Class meets at the Beverly Hills Club, 31555 Southfield Road, Beverly Hills, between Beverly Road and 13 Mile Road on the west side of Southfield Road. 248-642-8500 All students pay BPS rate for this class; no surcharge for non-residents.