Upcoming Events

Maker Faire Long Island, June 7th, 2025

Jun 07, 2025 10:00AM—5:00PM

Port Jefferson Harborfront

Summer Camps 2025

Jul 14, 2025 9:00AM—Aug 29, 2025 12:00PM

First Mondays: Homeschool Families Exclusive at the LI Explorium TUESDAY EDITION 5-6-25

May 06, 2025 10:00AM—12:00PM

Our current General Hours are:

Saturday and Sunday: 1 PM – 5 PM
School Year Hours in effect starting September 2nd, 2024

Additional hours during special events, school breaks, and holidays as noted. See our Calendar of Events page for upcoming events

Stay informed by signing up for our newsletter and following us on social media.

For more details, including a virtual tour, map, and additional information, visit our Visit Us Page.

Monday through Friday:
Closed
Saturday:
1:00 PM - 5:00 PM
Sunday:
1:00 PM - 5:00 PM

In addition to our regular hours, we will be OPEN:

  • Martin Luther King Jr Day: Monday, 1/20/25.
  • Lunar New Year: Wednesday, 1/29/25.
  • February Break: Monday, 2/17/25 through Friday, 2/21/25.
  • Spring Break: Monday, 4/14/25 through Friday, 4/18/25.
  • Memorial Day: Monday, 5/26/25.
  • Juneteenth: Thursday, 6/19/25.

Closed Christmas Eve & Christmas Day

Additional dates to be added