About
A new page is being written in the storied history of St. Louis Union Station. Retrofitted in the former train station, the St. Louis Aquarium will take you on an aquatic adventure like no other. From alligator snapping turtles to zebra sharks and personalized interactive experiences to community-building activities, this all-ages attraction has something for everyone.Kid-Friendly Fun in a Historical Setting
Once one of the largest and busiest passenger rail terminals in the world, St. Louis Union Station is now a wellspring of family-friendly activity.
30 Things to Do in St. Louis for Less Than $30
Traveling on a budget? St. Louis has an abundance of unforgettable activities, including the St. Louis Aquarium at Union Station, that won’t break the bank.
201 S. 18th St.
St. Louis,
MO
63103
TripAdvisor Rating:
273 Reviews | Write a ReviewBook the behind the scenes tour
Reviewed By Jennifer B September 2026We took our grad student son and his fiancee to the aquarium and booked the behind the scenes tour. Although the tour can take up to 10 attendees, there were just four of us on the tour. Brian was...
Full ReviewNot worth the price or time
Reviewed By Wade080 July 2026Expensive for so few of tanks. Very disappointed
Full ReviewFun aquarium
Reviewed By 1024mh June 2026Both of my boys loved it! It is not a very big aquarium but nice none the less. We spent about 2.5 hours there, but I think it is geared towards children and I don't see adults without kids spending...
Full ReviewHours
Hours vary by day and season – check website for more information.
What's Nearby
1894 Cafe at St. Louis Union Station
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Grand Hall at St. Louis Union Station
The perfect dining destination prior to a sports game, concert or downtown festival, The Grand Hall’s central downtown…
TripAdvisor Rating:
273 Reviews | Write a ReviewBook the behind the scenes tour
Reviewed By Jennifer B September 2026We took our grad student son and his fiancee to the aquarium and booked the behind the scenes tour. Although the tour can take up to 10 attendees, there were just four of us on the tour. Brian was...
Full ReviewNot worth the price or time
Reviewed By Wade080 July 2026Expensive for so few of tanks. Very disappointed
Full ReviewFun aquarium
Reviewed By 1024mh June 2026Both of my boys loved it! It is not a very big aquarium but nice none the less. We spent about 2.5 hours there, but I think it is geared towards children and I don't see adults without kids spending...
Full Review