8:30–11:30am Mashashimuet Park Friends and Family 5K Run/Walk Ages: 5 and upFundraisers Sports Mashashimuet ParkSag Harbor
9am–3pm Inclusion In Motion 6 Hour Event (Up to 26.2 miles) Ages: AllFundraisers Special Needs Heckscher State ParkEast Islip
9am–noon YMCA East Hampton RECenter 5K Run/Walk Ages: AllFundraisers Sports East Hampton Main BeachEast Hampton
10am–4:30pm Heritage Farm & Garden 2025 Fall Festival Ages: AllAttractions Community Heritage Farm & GardenMuttontown
11am–4pm Legendary Crafts Ages: AllArt Attractions The Whaling Museum & Education CenterCold Spring Harbor
11am–4pm Jolly Roger Scavenger Hunt Ages: 3 and upAttractions Free The Whaling Museum & Education CenterCold Spring Harbor
11am–6pm San Gennaro Feast at Lenny Bruno Farms Ages: AllAnimals Community Lenny Bruno FarmsManorville
11am–9pm 38th Annual Bellmore Family Street Festival Ages: AllAttractions Community Bellmore Long Island Rail Road Parking LotBellmore
All day Long Island History Hunt Ages: 5 and upFree History & Culture Sportime Pickleball YorktownYorktown Heights
All day 8th Annual Scarecrow Contest at The Shoppes Ages: AllAttractions Community The Shoppes at East WindWading River
10am–4:30pm Heritage Farm & Garden 2025 Fall Festival Ages: AllAttractions Community Heritage Farm & GardenMuttontown
All day Long Island History Hunt Ages: 5 and upFree History & Culture Sportime Pickleball YorktownYorktown Heights
All day 8th Annual Scarecrow Contest at The Shoppes Ages: AllAttractions Community The Shoppes at East WindWading River
10am–4:30pm Heritage Farm & Garden 2025 Fall Festival Ages: AllAttractions Community Heritage Farm & GardenMuttontown
11am–4pm Jolly Roger Scavenger Hunt Ages: 3 and upAttractions The Whaling Museum & Education CenterCold Spring Harbor
All day Long Island History Hunt Ages: 5 and upFree History & Culture Sportime Pickleball YorktownYorktown Heights
All day 8th Annual Scarecrow Contest at The Shoppes Ages: AllAttractions Community The Shoppes at East WindWading River
10am–4:30pm Heritage Farm & Garden 2025 Fall Festival Ages: AllAttractions Community Heritage Farm & GardenMuttontown
10am–5pm MEOWseum: Gabby’s Dollhouse Day at LICM! Ages: 8 and underAttractions Long Island Children’s MuseumGarden City
10:30–11:30am Tour the Historic Sands-Willets House, c. 1735/1845 Ages: 5 and upHistory & Culture Tours Sands-Willets HousePort Washington
11am–4pm Jolly Roger Scavenger Hunt Ages: 3 and upAttractions The Whaling Museum & Education CenterCold Spring Harbor
Today, noon “Bulls of Wall Street,” a New Exhibition on 19th-century Finance The Lockwood-Mathews Mansion Museum
Today, 3:30 pm Teen Makerspace- Library Open House Week Belmont Library and Enrico Fermi Cultural Center
Today, 4 pm TEENS GET CRAFTY: Acrylic Painting With Brushes, Sponges, Craft Tape, and Stencils! Kingsbridge Library
Today, 4 pm Teen Center Takeover: Library Open House Week Edition – Button Making Hunts Point Library