Visit Us Birthday Parties

Visit Us


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

Visitors to the Explorium will enjoy fun and interactive hands-on exhibits all aimed at fostering the understanding and love of STEM.


Summer Schedule

Wednesday - Sunday

1:00pm - 5:00pm

(Other times by reservation)



$5 per person

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

Field Trips

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


Long Island Explorium has an abundance of maritime experiences for little explorers


Long Island Explorium has a variety of programs for families, students, educators, and other explorers

Birthday Parties

Long Island Explorium has exciting and interactive Birthday Party Packages available.


Summer Camp 2019

Jul 08, 2019 12:00AM—Aug 30, 2019 11:59PM

Bridge Building

Jul 17, 2019 1:00PM—Jul 21, 2019 5:00PM

Long Island Explorium Wednesday, July 17th - Sunday, July 21th. 1-5pm each day Bridge Building: Design and build a structure that spans our river and supports as much weight as possible.

Summer Camp: Superheroes Scream STEAM

Jul 22, 2019 9:00AM—Jul 26, 2019 12:00PM

Superhero Week

Jul 24, 2019 1:00PM—Jul 28, 2019 5:00PM

Long Island Explorium Wednesday, July 24th - Sunday, 28th. 1-5pm each day It's superhero week. Design your own superhero outfit and create your unique color