School Year Scheduling is in Effect!
In addition the Long Island Explorium is open on:
We Are Closed:
Closed Christmas Eve, Christmas Day, & New Year's Day
Additional dates to be added
Apr 04, 2026 1:00PM—Apr 05, 2026 5:00PM
Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777
Mar 28, 2026 1:00PM—Mar 29, 2026 5:00PM
Mar 21, 2026 1:00PM—Mar 22, 2026 5:00PM
Mar 14, 2026 1:00PM—Mar 15, 2026 5:00PM
Feb 28, 2026 1:00PM—Mar 01, 2026 5:00PM
Feb 21, 2026 1:00PM—Feb 22, 2026 5:00PM
