Featured
Current & Upcoming
Open Play Hours – Dec 20th- 21st
Dec 20, 2025 1:00PM—Dec 21, 2025 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 – Dec 26th
Dec 26, 2025 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 – Dec 27th – 28th
Dec 27, 2025 1:00PM—Dec 28, 2025 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 – Dec 29th
Dec 29, 2025 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 – Dec 30th
Dec 30, 2025 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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NOON Year’s Eve, Wednesday, December 31, 2025
Dec 31, 2025 10:00AM—12:00PM
RegisterNoon Year’s Eve – Countdown to Noon Celebration Wednesday, December 31st, 2023 – 10 AM – 12 PM,Noon Year’s Eve – Countdown to Noon Celebration Experience the Magic of a Morning New Year’s Celebration!Kick off the New Year with a joyful morning celebration at the Long Island Explorium. There is no need to stay…
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HOLIDAY Open Play Hours – Dec 31st
Dec 31, 2025 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 2nd
Jan 02, 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 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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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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July – 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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