There is a 45 minuute tour and a 90 minute tour. We were on the 90 minute two and it ended up taking over two hours due to delays at the locks. Give yourself time in between activities.
90 minutes tops
90 min river cruise. 90 min sunset cruise
An hour and half
It was 70 min
70mins. Do the evening tour if possible. Do the tour that takes you to lake Michigan as well as the architecture tour
The river and lake tour is supposed to be 90 min, but if you miss the lock, it can be 2 hours.
The architecture tour lasts 75 minutes.
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