Past | All
Open Play Hours – March 22nd-23rd
Mar 21, 2026 1:00PM—Mar 22, 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…
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Open Play Hours – March 14-15th
Mar 14, 2026 1:00PM—Mar 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…
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STEM 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
STEM 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…
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Skate 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
Skate 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…
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Open Play Hours – Feb 28th- March 1st
Feb 28, 2026 1:00PM—Mar 01, 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…
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Teen Night at the Long Island Explorium 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
Teen 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…
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Open Play Hours – Feb 21st- 22nd
Feb 21, 2026 1:00PM—Feb 22, 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…
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Winter Break Open Play Hours – Feb 20th
Feb 20, 2026 1:00PM—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. Monthly Theme for:February…
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Winter Break Open Play Hours – Feb 19th
Feb 19, 2026 1:00PM—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. Monthly Theme for:February…
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Winter Break Open Play Hours – Feb 18th
Feb 18, 2026 1:00PM—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. Monthly Theme for:February…
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Winter Break Open Play Hours – Feb 17th
Feb 17, 2026 1:00PM—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. Monthly Theme for:February…
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February 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…
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Winter Break Open Play Hours – Feb 16th
Feb 16, 2026 1:00PM—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. Monthly Theme for:February…
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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…
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Closed Due to Snow – Jan 25th
Jan 25, 2026 ALL DAY
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…
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Open Play Hours – Jan 24th
Jan 24, 2026 1:00PM—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…
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HOLIDAY Open Play Hours – Jan 20th
Jan 20, 2026 1:00PM—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…
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Open Play Hours – Jan 17th- 18th
Jan 17, 2026 1:00PM—Jan 18, 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…
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Open Play Hours – Jan 10th – 11th
Jan 10, 2026 1:00PM—Jan 11, 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…
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Open Play Hours – Jan 3rd – 4th
Jan 03, 2026 1:00PM—Jan 04, 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…
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