St. Louis Aquarium at Union Station

St. Louis Aquarium at Union Station - 120,000 Sq Ft Indoor Aquarium Downtown

120,000-square-foot aquarium inside St. Louis Union Station, the converted historic train terminal in downtown St. Louis. The aquarium houses 13,000+ aquatic animals including sharks, rays, river otters, and a 250,000-gallon shark tank.

Programs for Kids

Education programming through the Saint Louis Aquarium Foundation. Programs include:
- Camp Fins & Friends (ages 7-12, summer)
- Junior Summer Educators - JSE (ages 13-15, summer 2026)
- STEM-based conservation activities
- School field trips
- Group programs

What's Included

• 13,000+ aquatic animals
• 250,000-gallon shark tank
• Touch pools and interactive exhibits
• JSE teen educator development track

Experience

St. Louis families use the Aquarium as a year-round indoor destination. The 18th Street location is in downtown St. Louis at Union Station, walkable from the Convention Center and reachable via MetroLink at Union Station stop.