Teen Nights at the Long Island Explorium REGISTER NOW! March 27th, 2026 Details  TEEN NIGHT AT THE LONG ISLAND EXPLORIUM Ages: 11–15Schedule: Last Friday of each month, 6:00–8:00 pmFee: $10 per participantCapacity: 15 teens maximumFood: Pizza, water, and soda provided Teen Night at the Long Island Explorium is a monthly after-hours hangout created for pre-teens…

Museum Hours See a list of Upcoming Events Open Play Hours – School Year Hours in Effect 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 General…

Saturday, March 28th – 1-3 PMTeddy Bear Clinic with Stony Brook University One of our favorite events is back! Don’t miss this unique workshop at Long Island Explorium with special guests from Stony Brook University. Bring in your favorite teddy bear for a check-up and learn about health and wellness in a fun and interactive…

Museum Hours See a list of Upcoming Events Open Play Hours – School Year Hours in Effect 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 General…

April Intersession Camp Where STEM Adventures Inspire Future Innovators Please contact Erica Pacheco at epacheco@hcdsny.org to inquire about registering. Email to Inquire about Registering Long Island Explorium April Intersession Camp 2026 Hosted at Harbor Country Day School In partnership with the Long Island Explorium The Long Island Explorium is excited to bring its hands on…

Community Event See a list of Upcoming Events Open Play Hours – School Year Hours in Effect 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. Community EventTech Together…

STEM Scouts: Girl Scout Badge Quest STEM Scouts: Wiggly Worms 📅 Thursday, April 16, 2026 | 🕔 5:00 to 6:30 PM Long Island Explorium, Port Jefferson ✨ A hands on animal behavior workshop for Girl Scouts Students become animal behaviorists as they observe live earthworms and design gentle, animal friendly experiments to explore how worms…

Teen Nights at the Long Island Explorium REGISTER NOW! April 24th, 2026 Details  TEEN NIGHT AT THE LONG ISLAND EXPLORIUM Ages: 11–15Schedule: Last Friday of each month, 6:00–8:00 pmFee: $10 per participantCapacity: 15 teens maximumFood: Pizza, water, and soda provided Teen Night at the Long Island Explorium is a monthly after-hours hangout created for pre-teens…

Summer Themes See a list of Upcoming Events Open Play Hours – School Year Hours in Effect 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. July 1 -…

Summer Camp 2026 Give your child an unforgettable summer of exploration, innovation, and hands-on fun! REGISTER NOW! Summer Camp 2026  Unleash your child’s imagination this summer with a series of hands-on, theme-based camps designed to spark wonder and foster real-world skills. From the cutting-edge world of biomedical engineering to playful math adventures and underwater explorations,…

Summer Camp 2026 Give your child an unforgettable summer of exploration, innovation, and hands-on fun! REGISTER NOW! Summer Camp 2026  Unleash your child’s imagination this summer with a series of hands-on, theme-based camps designed to spark wonder and foster real-world skills. From the cutting-edge world of biomedical engineering to playful math adventures and underwater explorations,…

Summer Camp 2026 Give your child an unforgettable summer of exploration, innovation, and hands-on fun! REGISTER NOW! Summer Camp 2026  Unleash your child’s imagination this summer with a series of hands-on, theme-based camps designed to spark wonder and foster real-world skills. From the cutting-edge world of biomedical engineering to playful math adventures and underwater explorations,…

Summer Camp 2026 Give your child an unforgettable summer of exploration, innovation, and hands-on fun! REGISTER NOW! Summer Camp 2026  Unleash your child’s imagination this summer with a series of hands-on, theme-based camps designed to spark wonder and foster real-world skills. From the cutting-edge world of biomedical engineering to playful math adventures and underwater explorations,…

Summer Camp 2026 Give your child an unforgettable summer of exploration, innovation, and hands-on fun! REGISTER NOW! Summer Camp 2026  Unleash your child’s imagination this summer with a series of hands-on, theme-based camps designed to spark wonder and foster real-world skills. From the cutting-edge world of biomedical engineering to playful math adventures and underwater explorations,…