An urban beach, and right across the street from the hotel! Might be a bit cold in April, though.
Great place for a stroll and to admire the Chicago architecture.
If you're visiting Chicago for a while, be sure to check out the museum campus, home to the Field Museum, Shedd Aquarium, and Adler Planetarium!
Is it a rat, or is it a squirrel? Come judge for yourself before the hole is gone!