Tuesday is the first day of free admission if you're an Illinois resident with a valid ID.
You can check out the all the aquatic attractions they have to offer on select free admission days, which are as follows:
2024 Free Days (hours vary)
- January 9-16, 23-25, 30, 31
- February 1, 6-8, 13-15, 20-22, 27-29
2024 Free Tuesday Evenings (5 to 9 p.m.)
- March 5, 12, 19, 26
- April 2, 9, 16, 23, 30
- May 7, 14, 21, 28
- June 4, 11, 18, 25
Tickets must be reserved in advance. For more information, visit the Shedd Aquarium's website.