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
Sep 14, 2025 10:00AM—5:00PM
Port Jefferson Harborfront
Jun 08, 2024 10:00AM—5:00PM
Jun 03, 2023 10:00AM—5:00PM
Jun 08, 2019 10:00AM—5:00PM
