Community Day – Special Open Play Hours – Nov 24th – Black Friday Sale

Nov 24, 2023 1:00PM—5:00PM

Cost Long Island Explorium admission is $6 per child, $8 per adult, Long Island Explorium members and children under 1 are free.


Our Museum, Our Community, Our Future

A Celebration of Support

Join the Long Island Explorium as we celebrate our community's commitment to empowering the next generation of STEM leaders!

  • FREE Admission for All!
  • Engaging Hands-on STEM Activities
  • Create Your Own Holiday Card Photos with our Green Screen!
  • Enjoy Hot Cocoa and Popcorn
  • Holiday Photoshoot on Our Green Screen

Thank You for Your Support!

Your contribution helps us educate, enrich, and empower our community. Let's shape the future together!

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.
Wednesday - Special Holiday Hours - 11/22/23
1:00 PM - 5:00 PM
Friday - Special Holiday Hours - Black Friday
1:00 PM - 5:00 PM
1:00 PM - 5:00 PM
1:00 PM - 5:00 PM

See Upcoming Events

SBU Teddy Bear Clinic – March 24th, 2024

Mar 24, 2024 1:00PM—3:00PM

Long Island Explorium 101 East Broadway Port Jefferson, NY 11777

Leprechaun Trap Engineering Add-On Activity:

Mar 16, 2024 1:00PM—5:00PM

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,