School Year Scheduling is in Effect!
In addition the Long Island Explorium is open on:
Closed Christmas Eve, Christmas Day, & New Year's Day
Additional dates to be added
Dec 31, 2025 10:00AM—12:00PM
Nov 20, 2025 5:00PM—6:30PM
Long Island Explorium 101 East Broadway Port Jefferson, NY 11777
Nov 18, 2025 5:00PM—6:30PM
Nov 11, 2025 9:00AM—3:00PM
Nov 04, 2025 9:00AM—3:00PM
Nov 03, 2025 10:00AM—12:00PM
