Great location on Inner Harbor. A little pricy but once inside you see why. There is plenty to see and exhibits are VERY well done and spectacular! We worked our way leisurely through and took over 2 hours trying to see it all.

It's a huge aquarium, many levels to it. There is so much to see there even though it took us about an hour to get through. We went on Friday after 5pm where tickets are cheaper. $20 kids, $25 adults.

Great aquarium. My family has gone to numerous other aquariums and this is definitely a close second to the Georgia aquarium. This place is well done and even with a packed crowd there was still space to see everything.

This is an exceptional aquarium, well laid out and displayed. Try to go off peak if possible for best viewing opportunities. Parking options are difficult and/or expensive, so be prepared and allow time.

Every time we go to Baltimore,  RogueTrippers always visit the National Aquarium.   It is located right on the harbourfront, making it an easy place to visit.   This is a world-class aquarium with amazing exhibits of various sea life from around the world.  
The Aquarium is rather large, and there are a lot of amazing creatures and displays. 
 Plan a few hours for your visit to enjoy it in its entirety. It can easily be included in your day at the Harbour. Including shops, restaurants, attractions, etc. 
In our Roguetrippers 48 hour itinerary we did the aquarium and many many other things in Baltimore.   Canadian visitors: If your credit card needs a PIN, order your tickets ahead of time online. The aquarium doesn’t have the appropriate equipment to handle PIN access cards, which is very frustrating, although not completely disruptive.   The cost is hefty,  like most aquariums.

Three generations loved our visit to the National Aquarium. Easy access for all with stairs, escalators, elevators, ramps and moving sidewalks. You will need to check your stroller if you bring one. We went mid week and the crowds weren't too bad. It was a homeschooling day so there were many children but that also meant there were extra personnel with tables set up for information. The touch pools were closed (remodeling, I think) but everything else was open. The sharks and jellyfish were natural favorites but don't discount the Australian section or the Amazonian Rain forest. Dolphins are available to see however they do not do "shows" anymore. The cafes are priced as expected in tourist areas. They have a gift shop. I was told to save my tickets (corporate event tickets) to use for discounts but they do not have a military/veteran discount.

I thought my husband was crazy to have us leave DC to go to Baltimore for the acquarium and Fort McHenry, but I'm so glad he did! This acquarium is huge. We were there for 3 hrs with no problem. It's all really well planned- there were even snack streams right when my kids got hungry. The 4D theater is so fun (if your children are sensory avoiders or are easily shocked, the 4D theater is not for you). The dolphin area is so relaxing. You can just go there and sit and watch them for as long as you want. If we hadn't been with small children, we probably would have spent another 90 minutes there- that's how large and in depth it is. Parking is down the street in a garage. Hard Rock Cafe and Phillips seafood are right there on the same plaza.

The price was a bit of a deterrent at first but I am glad we went as they had some animals that I have not seen before. The layout of the aquarium is really cool and the exhibits are top notch. The exhibits are very informative and easy to read. There is a jellyfish touch pool which of the likes I have never seen before. A few of the fish they have there were some of the biggest I have seen of those species. The highlight of the experience was getting to see the “Irwin’s Turtle,” the “Australian Lung Fish” and the absolutely massive fish in the Amazon exhibit. I loved the layout of the main exhibit when you first walk in and the seemingly stacked tanks when you get to the shark/reef exhibit. The only thing I did find upsetting was the dolphin exhibit as it was basically a big tank which is good as they have room to swim but yet the only enrichment the animals had was a ball that we saw. There were no rubbing rocks or anything like what we have seen at other aquariums that had dolphin exhibits. The national aquarium needs to look at how the Georgia aquarium has its dolphin exhibit set up as it’s much more cetacean friendly versus a big empty metal tank.

Very insightful tour. Had a great learning time seeing all the amazing water and sea animals. Some things from Africa like the cocoa tree and plantain. Touched a jelly fish and some crab . It was great.

Very good Aquarium, among the best in the U.S. but very high priced. Justification is indicated since it claims to contribute to sea and water conservation efforts. A variety of exhibits with many kid friendly areas, and this seems to be working with many young visitors the summer day I was there. Theshark exhibit is a huge draw.