They have one designated entry on Greenwood Beach which is available when the beach is open for swimming during the summer:Yet another reason to live in Evanston....
"Scuba Diving and the use of masks and snorkels is only permitted on Greenwood Beach by certified divers with required equipment. Required equipment includes at least one other certified diver with them, a buoyancy vest, scuba certification card, diver down flag, and submersible pressure gauge to enter."
"7-11-4. - ...no person shall enter the water from the City beaches except during the period beginning at 10:30 a.m. on the Saturday of Memorial Day weekend, and ending as set forth below, ... Greenwood Street Beach 10:30 A.M. to 8:00 P.M. through July 31. 10:30 A.M. to 7:30 P.M. August 1 until and including Labor Day"
The prohibition on snorkeling (unless you are a diver) seems a little bizarre.