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  • Community Appreciation Day – Black Friday at the Long Island Explorium!

    Nov 28, 2025 1:00PM—5:00PM

    Long Island Explorium 101 E Broadway, Port Jefferson, NY

    Open Hours, November 28, 2025 (Black Friday) Community Appreciation Day Black Friday at the Long Island Explorium! Black Friday at the Long Island ExploriumFriday, November 28, 20251:00 PM to 5:00 PM Kick off the holiday season with a STEM filled afternoon at the Long Island Explorium. Bring the whole family to explore hands on exhibits,…

  • NOON Year’s Eve, Wednesday, December 31, 2025

    Dec 31, 2025 10:00AM—12:00PM

    Register

    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 up until midnight when you can ring…

Current & Upcoming

Explorium Express – Elf Workshops – Dec. 3rd

Dec 03, 2022 1:00PM—2:30PM

Long Island Explorium 101 East Broadway Port Jefferson, NY 11777

Explorium Express – Elf Workshops – December 3rd November 25th Through December 17thExplorium Express presents : Elf Workshops All aboard the Explorium Express! Join us for one of our “Elf Workshops” to make a gift for someone special in your life and engage in some STEM learning along the way! Skip the busy stores and Amazon…

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Explorium Express – Elf Workshops – Nov. 25th

Nov 25, 2022 1:00PM—2:30PM

Long Island Explorium 101 East Broadway Port Jefferson, NY 11777

Explorium Express – Elf Workshops – November 25th November 25th Through December 17thExplorium Express presents : Elf Workshops All aboard the Explorium Express! Join us for one of our “Elf Workshops” to make a gift for someone special in your life and engage in some STEM learning along the way! Skip the busy stores and Amazon…

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Past | Archive

Open Play Hours – SCHOOL HOLIDAY- Nov 26th

Nov 26, 2025 1:00PM—5:00PM

Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777

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Open Play Hours – Nov 22nd – 23rd

Nov 22, 2025 1:00PM—Nov 23, 2025 5:00PM

Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777

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STEM Scouts: Girl Scout Badge Quest – Special Agents & Detectives – November 20, 2025

Nov 20, 2025 5:00PM—6:30PM

Long Island Explorium 101 East Broadway Port Jefferson, NY 11777

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STEM Scouts: Girl Scout Badge Quest – Mechanical Engineering – November 18, 2025

Nov 18, 2025 5:00PM—6:30PM

Long Island Explorium 101 East Broadway Port Jefferson, NY 11777

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Open Play Hours – Nov 15th – 16th

Nov 15, 2025 1:00PM—Nov 16, 2025 5:00PM

Long Island Explorium Port Jeff Harbor 101 East Broadway Port Jefferson, NY 11777

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Discovery Days at the Long Island Explorium – November 11, 2025

Nov 11, 2025 9:00AM—3:00PM

Long Island Explorium 101 East Broadway Port Jefferson, NY 11777

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