All day Vote for Your Favorite Scarecrow! Ages: 3 and upFree Halloween Stony Brook Village CenterStony Brook
10 am – 10 pm FLASHBACK 5: Celebrating Five Years of ARTECHOUSE NYC Ages: AllArt Attractions ARTECHOUSE NYCChelsea
11 am – 4 pm Mythic Crafts Ages: 5 – 12Craft & DIY The Whaling Museum & Education CenterCold Spring Harbor
11 am – 4 pm Secret Sirens Ages: 5 and upArt Free The Whaling Museum & Education CenterCold Spring Harbor
All day Vote for Your Favorite Scarecrow! Ages: 3 and upFree Halloween Stony Brook Village CenterStony Brook
10 am – 10 pm FLASHBACK 5: Celebrating Five Years of ARTECHOUSE NYC Ages: AllArt Attractions ARTECHOUSE NYCChelsea
11 am – 4 pm Mythic Crafts Ages: 5 – 12Craft & DIY The Whaling Museum & Education CenterCold Spring Harbor
11 am – 4 pm Secret Sirens Ages: 5 and upArt Free The Whaling Museum & Education CenterCold Spring Harbor
5:30 – 8:30 pm Family-Friendly Spooky Woods & Trick O’ Treat Ages: 3 – 12Community Festivals The Smithtown Historical SocietySmithtown
6 – 9 pm USCG Associations Present: Haunted Ft. Wadsworth Ages: 5 and upHalloween Holiday Ft. Wadsworth GymStaten Island
9 am – 3 pm Brooklyn Book Bodega Book Giveaway Ages: AllBooks & Readings Free East New York FarmsBrooklyn
10 am – noon Storytime with the New York Public Library Ages: 12 and underFree Backyard at Hudson YardsManhattan
10 am – 10 pm FLASHBACK 5: Celebrating Five Years of ARTECHOUSE NYC Ages: AllArt Attractions ARTECHOUSE NYCChelsea
10 am – 2 pm Ocean Breeze Fall Festival Ages: AllFree Ocean Breeze Track & Field Athletic ComplexStaten Island
11 am Weekly Storytime Ages: 3 – 12Books & Readings Free Barnes & Noble Staten Island MallStaten Island
11 am – 4 pm Mythic Crafts Ages: 5 – 12Craft & DIY The Whaling Museum & Education CenterCold Spring Harbor
11 am – 4 pm Secret Sirens Ages: 5 and upArt Free The Whaling Museum & Education CenterCold Spring Harbor
11 am – 2 pm 3 – 5 pm Trick or Treat Trek Ages: 3 and upFestivals Fundraisers Bartow-Pell Mansion MuseumBronx
1 – 2 pm Science Saturdays: Spa Chemistry Candy Corn Bath Bombs Ages: 5 – 12 Long Island Science CenterRiverhead
5:30 – 8:30 pm Family-Friendly Spooky Woods & Trick O’ Treat Ages: 3 – 12Community Festivals The Smithtown Historical SocietySmithtown