If you’ve been fishing around trying to decide when to visit the Shedd Aquarium, here’s your chance.

Illinois residents with a valid ID get free general admission to the downtown aquarium on Jan. 18, 19, and 22-26. Tickets can be reserved online, but a $3 fee applies.

Admission includes all permanent exhibits and the aquatic presentation. 4-D Experience admission is a $4.95 upgrade for all guests.

Alaskan sea otter rescue, Mari, experiencing her snow enrichment. | ©Shedd Aquarium/Heidi Zeiger