Museum Hours

Current & Upcoming

Open Play Hours – May 31st thr June 1st

May 31, 2025 1:00PM—Jun 01, 2025 5:00PM

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

Museum Hours 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 Hours are: Saturday and Sunday: 1 PM – 5 PM School Year Hours in effect…

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Past | Archive

Open Play Hours – May 24th thr 25th

May 24, 2025 1:00PM—May 25, 2025 5:00PM

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

Open Play Hours – May 17th thr 18th

May 17, 2025 1:00PM—May 18, 2025 5:00PM

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

Open Play Hours – May 3rd thr 4th

May 03, 2025 1:00PM—May 04, 2025 5:00PM

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

Open Play Hours – April 26th thr 27th

Apr 26, 2025 1:00PM—Apr 27, 2025 5:00PM

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

Open Play Hours – March 29th thr 30th

Mar 29, 2025 1:00PM—Mar 30, 2025 5:00PM

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

Open Play Hours – March 22nd thr 23rd

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

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