Memorial Day – Open Play Hours – May 29th

May 29, 2023 1:00PM—5:00PM

Cost Long Island Explorium admission is $5 per person, Long Island Explorium members and children under 1 are free


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 regular hours for open play are Saturday - Sunday from 1 PM- 5 PM, and noted school breaks and holidays.

Sign up for our newsletter and follow us on social media for up-to-date information.

General Hours:

  • Saturday to Sunday, from 1 to 5 pm.
1:00 PM - 5:00 PM
1:00 PM - 5:00 PM

See Upcoming Events

Space Saturdays

Jul 27, 2024 11:00AM—Aug 24, 2024 5:00PM

Port Jeff Harbor, 101 East Broadway, Port Jefferson, NY 11777

Space Saturdays – August 3

Aug 03, 2024 11:00AM—12:30PM

Port Jeff Harbor, 101 East Broadway, Port Jefferson, NY 11777

Summer Camps 2024

Jul 15, 2024 9:00AM—Aug 30, 2024 12:00PM

Founded in 2005, the Long Island Explorium is a 501(c)(3) not-for-profit, charitable organization; your donations and memberships support the Long Island Explorium’s mission and outreach programs. Without your help, our work would not be possible. We are committed to the development of programs and exhibits deeply rooted in research and evidence-based practice. Our programs are aligned with NYSSLS, ELA, Math, and Social Studies Standards.

If you would like to support this or any of our programs, please consider a donation of $10 to the Explorium by visiting our Support Page 

Please view our Visit Us page to learn more about our enhanced protocols,