COSI After Dark
Grab your friends and start your weekend early with COSI After Dark, an evening event series exclusively for adults ages 21+. Every month showcases a different theme—from Wizard School to Super Heroes—and each features entertainment, activities, games, and experiences you can't get at any other visit to COSI. Explore the building and experience COSI without kids, all while enjoying delicious food, craft beer and themed cocktails.
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Looking for group admission to COSI After Dark? Please reach out to This email address is being protected from spambots. You need JavaScript enabled to view it..
Boo Bash
October 12, 2023
7PM - 10PM
$20/person in advance
$30/person at the door
UPCOMING AFTER DARK EVENTS
COSI After Dark
Grab your friends and start your weekend early with COSI After Dark, an evening event series exclusively for adults ages 21+. Every month showcases a different theme—from Wizard School to Super Heroes—and each features entertainment, activities, games, and experiences you can't get at any other visit to COSI. Explore the building and experience COSI without kids, all while enjoying delicious food, craft beer and themed cocktails.
*General Admission to COSI After Dark does not include admission to Tutankhamun: His Tomb and His Treasures. Tickets for this immersive, traveling exhibition can be added-on, if available, when purchasing tickets to the event.
Boo Bash
October 12, 2023
7PM - 10PM
$20/person in advance
$30/person at the door
KNOW BEFORE YOU GO
Find more information about parking, tickets, ID requirements, and more.
UPCOMING AFTER DARK EVENTS
Tickets available now!
Boo Bash
October 12, 2023
Tickets available now!
Monte Carlo
November 9, 2023
Tickets available now!
Wizard School: Yule Ball
December 14, 2023