9:30 – 11 am Orthodox Christian Paschal Season (English Language Services) Ages: AllCommunity Easter Family Holy Trinity Orthodox Church of East MeadowEast Meadow, NY
10 am – 5 pm Moon to Mars Ages: 8 and underAttractions Family Long Island Children’s MuseumGarden City
10 – 11:30 am Sunday Science: Science of Superheroes Ages: 5 – 12Family The Center for Science Teaching and Learning
10 am – 4 pm Tulip Festival at Heritage Farm & Garden Ages: 3 and upCraft & DIY Environment Family Heritage Farm and GardenMuttontown
10:30 am – 1:30 pm “Meet the Frogs” Story Time with Crystal Ages: AllEnvironment Family South Fork Natural History Museum (SoFo)Bridgehampton
11 am – 4 pm Release the Kraken! Scavenger Hunt Ages: 3 and upArt Attractions Family The Whaling Museum & Education Center
11 am – 4 pm Up-Cycled Ocean Crafts Ages: AllArt Attractions Family The Whaling Museum & Education Center
1 – 4 pm BAFFA’s Annual Juried High School Art Exhibit Ages: 13 and upArt Family Free BAFFA GallerySayville
1 – 3 pm Sunday Funday: Earth Day is Every Day Ages: 5 – 12Environment Family Sweetbriar Nature Center
2 – 3 pm The Great Gatsby Anniversary Party! Featuring Live Music by The Matthew Everingham Combo Ages: AllBooks & Readings Community Family The Merrick LibraryMerrick
3 pm Puppy Pals LIVE! – The Action-Packed Comedic Stunt Dog Show Ages: AllAnimals Family Theater The Madison Theatre
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Family Theater Long Island Children’s MuseumGarden City
10 am – 4 pm Tulip Festival at Heritage Farm & Garden Ages: 3 and upCraft & DIY Environment Family Heritage Farm and GardenMuttontown
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Family Theater Long Island Children’s MuseumGarden City
10 am – 5 pm Moon to Mars Ages: 8 and underAttractions Family Long Island Children’s MuseumGarden City
10 am – 4 pm Tulip Festival at Heritage Farm & Garden Ages: 3 and upCraft & DIY Environment Family Heritage Farm and GardenMuttontown
10 am – 12:30 pm Dewdrop Discoveries for Preschool Aged Children Ages: 3 – 4Animals Art Family CEEDBrookhaven, NY 11719
4 – 5 pm International Snack Night Ages: 9 and upFamily Food & Drink Free The Hampton LibraryBridgehampton
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Family Theater Long Island Children’s MuseumGarden City
10 am – 5 pm Moon to Mars Ages: 8 and underAttractions Family Long Island Children’s MuseumGarden City
10 am – 4 pm Tulip Festival at Heritage Farm & Garden Ages: 3 and upCraft & DIY Environment Family Heritage Farm and GardenMuttontown
5:30 – 6:30 pm Goat and Alpaca Yoga Ages: 5 and upAnimals Family Health & Fitness The Smithtown Historical Society
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Family Theater Long Island Children’s MuseumGarden City
10 am – 5 pm Moon to Mars Ages: 8 and underAttractions Family Long Island Children’s MuseumGarden City
Tomorrow, all day Park Slope’s P.S. 118 Showcases Student Creativity With Artscape P.S. 118 Maurice Sendak Community School
Tomorrow, 5 pm The Biomimicry Institute’s 20th Anniversary Picnic in New York Picnic House in Prospect Park
Brooklyn Paper All Good Dispensary opens in Flatbush with a focus on wellness, safety, and locally-grown cannabis