Park & nature
St. Louis Aquarium at Union Station
Some booking links are affiliate links. If you book through them, we may earn a small commission at no extra cost to you. We never let this influence which places we recommend.
Housed in the historic Union Station, the St. Louis Aquarium is a modern attraction that combines education and entertainment. Visitors can explore a 120,000-gallon shark tunnel, get up close with stingrays in a touch pool, and see playful otters, penguins, and exotic fish. The aquarium is part of a larger entertainment complex that includes a Ferris wheel, mini-golf, and dining. The exhibits are designed to simulate natural habitats, from the Mississippi River to the Amazon rainforest. It's a family-friendly destination that appeals to all ages, with interactive displays and feeding demonstrations throughout the day. The aquarium's location in the beautifully restored train station adds a unique historical backdrop.
Don't miss
- Walk through the 120-foot shark tunnel
- Touch stingrays in the interactive pool
- Watch otter and penguin feedings
- Explore the Amazon and Mississippi River exhibits
- Ride the St. Louis Wheel adjacent to the aquarium
Tickets & tours
Ways to visit St. Louis Aquarium at Union Station
You can visit on your own (paid entry, book online to skip lines; combo tickets with other attractions available). A tour adds transport and a guide, or combines nearby sights into one day.
Cheapest way inLandmarks Downtown-West Walking Tour4.6★ · 57 travelers~3 hoursFree cancellationFrom$20 per personSee dates →
Most bookedSt. Louis Cemetery No. 1 Official Walking Tour4.6★ · 4,548 travelers~1 hourFree cancellationFrom$25 per personSee dates →
Private & flexibleStL's Signature "Sights and Bites" - Private Tour in St. Louis5★ · 32 travelers4–6 hoursFree cancellationFrom$165 per personSee dates →Good for
How travelers rate it
Know before you go
- Buy tickets online in advance to save time and money.
- Photography is allowed, but no flash near animals.
- Dining options are available on-site, including a food court.
- Parking is available in the Union Station garage; validate for discounts.
A bit of history
Union Station opened in 1894 as a bustling train hub. After declining rail travel, it was renovated into a hotel, shopping, and entertainment complex. The aquarium opened in 2019 as part of a $187 million redevelopment, revitalizing the historic space.
Common questions
How many animals are at the aquarium?
Over 13,000 animals representing 250 species.
Is the aquarium good for toddlers?
Yes, it's very family-friendly with interactive exhibits and stroller access.
Can I bring outside food?
Outside food and drinks are not allowed, but there are on-site restaurants.
Are there feeding times?
Yes, check the schedule upon arrival for otter, penguin, and shark feedings.
Is the aquarium part of a larger complex?
Yes, it's at Union Station which also has a Ferris wheel, mini-golf, and shops.
How do I get there by public transit?
Take the MetroLink to Union Station stop; the aquarium is a short walk.
More attractions in Saint Louis
