4 – 6:30 pm City Nature Challenge: Teen Bioblitz! at Brooklyn Bridge Park Ages: 9 and upEnvironment Family Free Visitor Center at the Boathouse, Pier 5 UplandsBrooklyn Heights, DUMBO
5:15 – 7:15 pm Open Play at Prospect Gymnastics Ages: 5 – 8Art Craft & DIY Family Prospect GymnasticsBed-Stuy
7 – 9 pm Omnium Circus: I’mPossible Ages: 5 and upAttractions Dance Family The New Victory TheaterMidtown
7:30 – 9 pm Ice Cream Social | Girls Youth Group Ages: 13 and upFamily Free Midwood Fortitude LodgeMill Basin
Various Earth Month at World Trade Center Ages: AllAttractions Family Free North Oculus Plaza at the World Trade CenterFinancial District
All day TADA! Youth Theater Presents World Premiere of Common Ground Ages: 9 and upFamily Theater TADA! Youth TheaterChelsea
9 am – noon 4th Annual J. Lew Memorial 5K Run/Walk Ages: AllFamily Fundraisers Sports The Mary Louis Academy
10 – 11 am Saturday Winter/Spring Music Fun with Musician Kurt Gallagher Ages: 4 and underFamily Free Music Port Chester-Rye Brook Public Library
10 am – 5 pm Earth Rocks! Ages: 12 and underArt Community Family Brooklyn Children’s MuseumCrown Heights
10 am – noon Kids Club: Friendship Bracelets Ages: 3 and upArt Craft & DIY Family Micheals Craft Store: Pergament Mall
11 am – 6 pm Apple Blossom Children’s Carnival Ages: AllAttractions Family Festivals Queens County Farm MuseumGlen Oaks
11 am – 4 pm This is New York: 100 Years of the City in Art and Pop Culture Ages: 3 – 12Art Books & Readings Family MUSEUM OF THE CITY OF NEW YORKEast Harlem
Noon – 4:30 pm Blooms at Queens Farm Ages: AllAttractions Family Free Queens County Farm MuseumGlen Oaks
Noon – 3 pm International Sculpture Day on Park Avenue Ages: 5 and upArt Concert Family 375 Park AvenueMidtown East
Noon – 2 pm 5 – 7 pm Omnium Circus: I’mPossible Ages: 5 and upAttractions Dance Family The New Victory TheaterMidtown
Noon – 5 pm Sabai Design Partners With Local NYC Artists For an Earth Day Gallery Pop-Up Ages: AllArt Environment Family 45 Lispenard St #1W