All city beaches are free to enjoy and will be open 6 a.m. through 11 p.m. all summer until September 2. Some people may be tempted to swim, but it's only allowed when lifeguards are on duty from 11 a.m. to 7 p.m.
For questions about water quality at Chicago Beaches, call (312) 742-BEACH (312-742-3224).
For more information on Chicago's beaches, visit the Chicago Park District's website.