Museum Hours

Current & Upcoming

Open Play Hours – Oct 25th-26th

Oct 25, 2025 1:00PM—Oct 26, 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. Get ready for…

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Open Play Hours – Nov 1st – 2nd

Nov 01, 2025 1:00PM—Nov 02, 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. Get ready for…

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Open Play Hours – Nov 8th- 9th

Nov 08, 2025 1:00PM—Nov 09, 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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Past | Archive

Open Play Hours – SCHOOL HOLIDAY- Oct 20th

Oct 20, 2025 1:00PM—5:00PM

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

Open Play Hours – Oct 18th-19th

Oct 18, 2025 1:00PM—Oct 19, 2025 5:00PM

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

Open Play Hours – SCHOOL HOLIDAY- Oct 13th

Oct 13, 2025 1:00PM—5:00PM

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

Open Play Hours – Oct 11th – 12th

Oct 11, 2025 1:00PM—Oct 12, 2025 5:00PM

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

Open Play Hours – Oct 4th-5th

Oct 04, 2025 1:00PM—Oct 05, 2025 5:00PM

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

Open Play Hours – Sept 27-28th

Sep 27, 2025 1:00PM—Sep 28, 2025 5:00PM

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