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
Jan 25, 2026 ALL DAY
Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777
Jan 24, 2026 1:00PM—5:00PM
Jan 20, 2026 1:00PM—5:00PM
Jan 17, 2026 1:00PM—Jan 18, 2026 5:00PM
Jan 10, 2026 1:00PM—Jan 11, 2026 5:00PM
Jan 03, 2026 1:00PM—Jan 04, 2026 5:00PM
