Featured
Current & Upcoming
Open Play Hours – Feb 14th – 15th
Feb 14, 2026 1:00PM—Feb 15, 2026 5:00PM
Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777
Museum Hours See a list of Upcoming Events Open Play Hours – School Year Hours in Effect Open Play at the Long Island Explorium Join us as we celebrate STEM, Space, Math, and Maker Activities all month long with exhibits, workshops, and special events! Join us for hands-on activities, crafts, and more. Our current General…
View MoreFebruary Intersession Camp
Feb 16, 2026 9:00AM—Feb 20, 2026 3:00PM
February Intersession Camp Where STEM Adventures Inspire Future Innovators Please contact Erica Pacheco at epacheco@hcdsny.org to inquire about registering. Email to Inquire about Registering Long Island Explorium February Intersession Camp 2026 Hosted at Harbor Country Day School In partnership with the Long Island Explorium The Long Island Explorium is excited to bring its hands on…
View MoreLong Island Explorium Teen Night on 2-27-26 (Ages 11 to 15)
Feb 27, 2026 6:00PM—8:00PM
Long Island Explorium 101 East Broadway Port Jefferson, NY 11777
RegisterTeen Nights at the Long Island Explorium REGISTER NOW! February 27th, 2026 Details TEEN NIGHT AT THE LONG ISLAND EXPLORIUM Ages: 11–15Schedule: Last Friday of each month, 6:00–8:00 pmFee: $10 per participantCapacity: 15 teens maximumFood: Pizza, water, and soda provided Teen Night at the Long Island Explorium is a monthly after-hours hangout created for pre-teens…
View MoreSkate Into STEM: An Evening on the Ice for Hands On Learning
Mar 08, 2026 6:00PM—8:00PM
The Rinx at Port Jefferson 101-A East Broadway Port Jefferson, NY 11777
RegisterSkate into STEM: Fun on the ice. Impact in the community. 2nd Annual Skate into STEMEnjoy a STEM takeover of the village center, Sunday, March 8th, 2026 This special event marks two decades of inspiring the next generation of innovators, problem solvers, and creators, and we want YOU to be part of the celebration! The…
View MoreSTEM Scouts: Girl Scout Badge Quest – Digital Leadership – March 12th, 2026
Mar 12, 2026 5:00PM—6:30PM
Long Island Explorium 101 East Broadway Port Jefferson, NY 11777
RegisterSTEM Scouts: Girl Scout Badge Quest STEM Scouts: Digital Leadership Thursday, March 12th, 2026 | 5:00 – 6:30 PM Long Island Explorium, Port Jefferson A thrilling STEM mystery adventure for curious Scouts! Who stole the cookies? Step into the shoes of a real detective and use logic, observation, and critical thinking to solve a hands-on…
View MoreLong Island Explorium Teen Night – 3-27-26 (Ages 11 to 15)
Mar 27, 2026 6:00PM—8:00PM
Long Island Explorium 101 East Broadway Port Jefferson, NY 11777
RegisterTeen Nights at the Long Island Explorium REGISTER NOW! March 27th, 2026 Details TEEN NIGHT AT THE LONG ISLAND EXPLORIUM Ages: 11–15Schedule: Last Friday of each month, 6:00–8:00 pmFee: $10 per participantCapacity: 15 teens maximumFood: Pizza, water, and soda provided Teen Night at the Long Island Explorium is a monthly after-hours hangout created for pre-teens…
View MoreJuly – August 31st Exhibit – Spy Tech from Then to Now
Jul 01, 2026 12:00AM—Aug 31, 2026 11:59PM
Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777
Summer Themes See a list of Upcoming Events Open Play Hours – School Year Hours in Effect Open Play at the Long Island Explorium Join us as we celebrate STEM, Space, Math, and Maker Activities all month long with exhibits, workshops, and special events! Join us for hands-on activities, crafts, and more. July 1 -…
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