Will call tickets for the CAC River Cruise can be picked up from the will call window at Chicago's First Lady boat dock on the day of your tour. The Chicago's First Lady dock is located at the southeast corner of Michigan Avenue Bridge at Wacker Drive. Look for the black awning at the stairway entrance (if using a GPS, enter 112 E. Wacker Drive). We recommend arriving at least 30 minutes prior to your departure time.