Great tour made possible by a really good guide.
Recommend to be mindful of weather - sun, rain, etc.
Check weather forecast and prepare accordingly.
Small waves in river, captain seems experienced - had a smooth ride.
Staff helpful - kid strollers to be left in bar.
Can have drinks at the bar - no restrictions of food that I know of - may want to check with Tour operator and get a picnic basket. Smells foul for about 2/3 mins in the middle of the tour, but still a pleasant ride.
Dont forget to spend some time on the river walk after the boat ride, gives you a new perspective on buildings after the tour.
PARKING:
Discounted parking is available at 111 E. Wacker Drive - cross Wacker and take stairs down to reach boarding docks. Give parking stub in Garage office (opposite pay stations in Street Level) to get an override for discount, and then pay at pay station.
Has accessible drop off right in front of the boat loading area - there is a street one level below of E. Wacker (Lower Wacker Dr?) - not sure how to reach there - some paid parking available.