Visit Us

Current Hours & Admissions

Blue Star Museum & Museums for all Programs

School Year Hours Hour in effect starting, September 2nd.
We are open Saturday - Sunday from 1 pm - 5 pm. (Unless otherwise noted)

You can view our upcoming Calendar of Events on our Events Page:
https://longislandexplorium.org/events/

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:

Winter Recess:

  • Monday, 12/23/24
  • Thursday, 12/26/24
  • Friday, 12/27/24
  • Monday, 12/30/24
  • Tuesday, 12/31/24

Closed Christmas Eve & Christmas Day

Additional dates to be added

Regular Hours Admissions

Children: $6
Adults: $8

Members and children under 1 are free
Port Jefferson Library card holders - $1 off each admission ticket

Blue Star Museum
Blue Star Museum

FREE for active-duty military personnel and their family members within the same household* (Proud to be a Blue Star Museum)

$0
Museums-for-All-Proud-Participant
Museums for All

FREE for SNAP/EBT cardholders and family members within their household.
Talk to one of our staff to obtain an annual membership.

$60 $0

Become a Member

Join now and unlock endless fun and learning opportunities while supporting our nonprofit mission to inspire a love of learning in children. With discounts and members-only perks, our membership is the key to unlocking the full potential of our children's museum. Become a member today and make a difference in your community!

Reopening-collage-2

The Long Island Explorium is housed in the beautiful historic Chandlery Building in Port Jefferson Village. The building was built in the 1890s and served as the chandlery, a store that sold nautical gear, candles, rope, sail repair kits, and all other equipment a ship would need for a long voyage.


We hope you will enjoy visiting our little gem of a children's museum. We welcome your feedback and comments as we work towards ensuring that our guests have an enjoyable and safe experience.

Long Island Explorium Front of Building

Quick Guide: What to Know Before You Go

  • If you are not feeling well, please stay home.
  • Enhanced sanitation measures have been added.
  • Reservations are required for private events sessions. Contact us for booking.  Private events are not a drop-off programming. An adult from your group must be present.  Book your requested date at least 4 days in advance.

At the Long Island Explorium, we prioritize safety while acknowledging that it is impossible to eliminate all risks associated with visiting. We have worked diligently to reopen and operate responsibly, and we ask for your cooperation in adhering to the health and safety guidelines we've put in place.

  • Please stay home if you are feeling unwell.
  • Visit our Events page and reserve your date
  • Masks are recommended for those who are immune-vulnerable, though they are optional for all visitors.
  • Use the sanitizers provided at the START of your visit. 
  • Wash your hands frequently for at least 20 seconds.
  • Avoid touching your face, and remember to cough or sneeze into your elbow.
  • Be patient and avoid crowding around exhibits. Practice social distancing by staying at least 6 feet away from others who are not part of your group.
  • Follow the posted signage throughout the Explorium.
  • Please note that private events are not drop-off programs unless specifically noted. An adult must be present for the duration of your group’s session.
  1. Please print your event registration confirmation and bring it with you if you are attending a private event at the Explorium.
  2. Ensure you book your visit at least 4 days in advance to allow for proper staffing arrangements.
  3. Limit the number of handheld belongings you bring into the Explorium.
  4. Arrive ready to enjoy and engage with our beloved exhibits and activities!

We at the Long Island Explorium are a nonprofit and are grateful for all our generous donors whose support allows us to continue to be mission-driven and committed to ensuring equal access to high-quality STEM programming to students of all needs and abilities.

Please consider making a gift that will make a difference.

Virtual Tour

VIRTUAL TOUR of the Long Island Explorium


Get a little sneak peek of the Explorium with our new 360 tour of the Long Island Explorium.

Contact Us

Mailing Address

Long Island Explorium
P.O. Box 465
Port Jefferson, NY 11777

Physical Address

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

Phone

631-331-3277

Email

Info@LongIslandExplorium.Org

Events and Exhibits

Field Trips - * New* VIRTUAL fieldtrips

Hands-on Workshops for Young Scientists, Grades Pre-K to 6TH!

Can't get to the Explorium, we'll bring the Explorium to you virtually! Call us to learn more.

Exhibits

Long Island Explorium has an abundance of enriching and impactful experiences for explorers from birth to 6th grade and beyond. There's never a dull moment for any of our visitors!

Programs

Long Island Explorium has a variety of programs for families, students, educators, and other explorers. We have been successful in pivoting to an online platform during this pandemic as well.  We can customize any of our programs for your needs.

Birthday Parties

We are thrilled to announce that birthday parties are once again available at the Explorium. The Explorium will be offering both indoor and outdoor styled birthday parties.⠀

Visit our parties page to start your booking.

2024 Maker Faire Long Island, June

Save the Date for next year's annual Long Island Makers Faire 2022, June 8, 2024

OUR UPCOMING EVENTS

Holiday Gnome Felting Kits Purchase Page

Dec 21, 2024 1:00PM—Dec 23, 2024 5:00PM

Long Island Explorium 101 East Broadway` Port Jefferson, NY 11777

NOON Year’s Eve, Tuesday, December 31, 2024

Dec 31, 2024 10:00AM—12:00PM

Open Play Hours – 12-21-24

Dec 21, 2024 1:00PM—5:00PM

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

Open Play Hours – 12-22-24

Dec 22, 2024 1:00PM—5:00PM

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