1–3pm Grace Music School Open House + Summer Camp Sign-Ups Ages: AllFree Music Grace Music SchoolWoodbury
1–2:30pm Interactive Nature Sculpture Installation Ages: 3 and upArt Community Downs Farm PreserveCutchogue
2–5pm Family Fest FUNdraiser for the Hampton Library in Bridgehampton! Ages: 3 – 12Community Festivals Channing Daughters WineryBridgehampton, NY 11932
5–7pm The Christopher A. Coluccio Foundation 4th Annual Ping Pong for Positivity Ages: AllFundraisers Sports St Joseph’s University Danzi Athletic CenterPatchogue
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Theater Long Island Children’s MuseumGarden City
9am–2pm Horse Show and Camp Open House Ages: AllAnimals Attractions New York Equestrian CenterWest Hempstead
9:30am–12:30pm The Beat Lives On 5K Run/Walk Ages: AllFundraisers Sports Venetian Shores ParkLindenhurst
9:30–11am Orthodox Christian Paschal Season (English Language Services) Ages: AllCommunity Easter Holy Trinity Orthodox Church of East MeadowEast Meadow
10am–5pm Cradle-Con: A Comic, Collectible and Pop Culture Con Ages: 5 and upExpo Festivals Cradle of Aviation MuseumGarden City
10am–6pm Iron Squirrel Challenge Ages: 5 – 8Health & Fitness The Adventure Park at Long IslandWheatley Heights
11am–4pm Release the Kraken! Scavenger Hunt Ages: 3 and upArt Attractions The Whaling Museum & Education CenterCold Spring Harbor
11am–4pm Up-Cycled Ocean Crafts Ages: AllArt Attractions The Whaling Museum & Education CenterCold Spring Harbor
Noon–10pm Bald Hill Fair Ages: AllAttractions Festivals Catholic Health Ampitheater at Bald HillFarmingville
2–4pm NFAC: Brooklyn Ballet Sunday Matinee Performance Ages: AllArt Dance North Fork Arts CenterGREENPORT
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Theater Long Island Children’s MuseumGarden City
Various Elephant & Piggie’s “We Are in a Play!” Ages: 3 – 8Theater Long Island Children’s MuseumGarden City
Brooklyn Paper ‘It’s our second home’: Sunset Park seniors fight to save cherished center facing rent hike