The kids really enjoyed some of the hands-on things such as the wave machine and interactive model of the Great Lakes. This was a great way to teach kids how boats move through locks. We all had fun with the camouflage screen. I haven't laughed so hard in ages. The lower level definitely had more interesting varieties of sea creatures. The kids were entertained by the busy ducks on the upper level.
The is a very personal opinion, but as someone who does not believe in evolution, I really disliked the evolution-based information presented on the panels at the beginning of the second floor exhibits. Because the is where you start your tour, my immediate impression of the museum was negative. I realize the banner on the outside of the museum hinted that this type of information would be presented and I chose to go in anyway. I also realize other museums display similar information. It was just a large amount right off the bat.
As others have said, the admission fee is high. Other than Spirit Mountain, this was the most expensive attraction we visited in Duluth.
Tip: To save money on parking, if the convention center lot is not full for a convention, you can pay to park there and see three attractions: Vista Cruise, William Irving Ore Boat and the aquarium. The lot is large enough that it is possible to move your car to various sections of the lot close to each attraction as opposed to using separate lots for each attraction and having to pay three different parking fees.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.