4 – 6:30 pm City Nature Challenge: Teen Bioblitz! at Brooklyn Bridge Park Ages: 9 and upEnvironment Free Visitor Center at the Boathouse, Pier 5 UplandsBrooklyn
10 am – 4 pm Arbor Day Festival Ages: AllFestivals Outdoors Planting Fields Arboretum State Historic ParkOyster Bay
Noon – 3 pm International Sculpture Day on Park Avenue Ages: 5 and upArt Concert 375 Park AvenueMidtown East
Noon – 4 pm Spring Outdoor Market at the Conference House Ages: AllCommunity Free Conference House ParkStaten Island
10 am – 4 pm Arbor Day Festival Ages: AllFestivals Outdoors Planting Fields Arboretum State Historic ParkOyster Bay
11 am – 12:30 pm Tot Time Ages: 4 and underCraft & DIY Free Shirley Chisholm State Park (Hendrix Creek Patio)Brooklyn
10 am – 2 pm Community Celebration Sponsored by Brilla Schools Ages: AllCommunity En Español Brilla College Prep School – South BronxBronx
2 – 4 pm May the Fourth at the New York Aquarium Ages: 5 – 8Animals Outdoors New York AquariumBrooklyn
All day Sisters Of St. Joseph Sprint into Spring 5K Fun Run/Walk Ages: 5 and upCommunity Craft & DIY Brentwood
9:30 – 10:30 am Spring Serendipity Hike Ages: 5 and upEnvironment Free Greenbelt Nature CenterState Island
8 – 11 pm Jenny Holzer, “For the Guggenheim” Light Projection Ages: AllArt Attractions GuggenheimUpper East Side
8 – 11 pm Jenny Holzer, “For the Guggenheim” Light Projection Ages: AllArt Attractions GuggenheimUpper East Side
11 am – 5 pm Sound & Color! Spring Festival Ages: AllCommunity Food & Drink Pier 5 – Brooklyn Bridge ParkBrooklyn
Gay City News United Methodists endorse change that could give regions more say on LGBTQ and other issues
Brooklyn Paper Grieving father fundraises to lift burden, advocate for Black maternal health after fiancé’s death