"The Montrose Dog Beach is currently the only legal off-leash beach with in the city of Chicago. The dog beach is located on the Northwest corner of Montrose Beach (the point closest to the city). Just follow Wilson Avenue until it curves to the left at the lake. Look for the big corrugated steel walls of the old Boat Launch, and you’re there. The entrance to the beach is to the right (south) of the boat launch, at the end of the path, down the rockwall. There’s a gate in the black fence."