Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
9:30am High Holiday Services at Chabad of Yorktown Ages: AllHoliday Jewish Chabad of YorktownYorktown Heights
10am–7pm Brick-or-Treat: Monster Party Ages: 3 – 12Attractions Games LEGOLAND Discovery Center WestchesterYonkers
Noon–3pm Trick-or-Treating @ Hilltop Hanover Farm Ages: AllAnimals Attractions Hilltop Hanover Farm & Environmental CenterYorktown Heights
12:30pm 2pm 3:30pm Planetarium Shows at Hudson River Museum Ages: AllArt Attractions Hudson River MuseumYonkers
1–11pm Eastchester Columbus Day Carnival Ages: AllAttractions Festivals Lake Isle Country ClubEastchester
5–8pm Twilight Village at Sleepy Hollow Ages: AllAttractions Halloween Philipsburg ManorSleepy Hollow
7–10:30pm The Haunt at Wildcliff Mansion Ages: 9 and upCommunity Halloween Hudson Park Children’s GreenhouseNew Rochelle
7–10:30pm The Haunt at Wildcliff Mansion Ages: 5 and upHalloween Holiday The Haunt at Wildcliff MansionNew Rochelle