4:30–5:15pm Science in Action @ the Village Branch Ages: 9 – 12Free Haverstraw King’s Daughters Public Library Village BranchHaverstraw
4:30–5:30pm Tot Parade at Chabad of the Rivertowns Ages: AllFestivals Free Chabad of the RivertownsDobbs Ferry
5:45–6:15pm Free Spooktacular Early Childhood Class Ages: 3 – 4Classes Free Eugene’s Music & Learning StudioPort Chester
6–10pm Tim Burton’s The Nightmare Before Christmas Light Trail Ages: AllAttractions Halloween New York Botanical GardenBronx
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
Various The Great Jack O’ Lantern Blaze: Hudson Valley Ages: AllFestivals Halloween Van Cortlandt ManorCroton-on-Hudson
8:30–10am Kids’ Community Farm-to-Table Ages: All Hilltop Hanover Farm & Environmental CenterYorktown Heights
9am–4pm White Plains Road Farmers Market & DOT NYC Open Streets Ages: 5 – 8Caribbean Community Gloria Dei Old Swedes Episcopal ChurchPhiladelphia
9:30–10:15am 10:30–11:15am 11:30am–12:15pm Halloween JAMS at Groove Family Music Ages: 8 and underHalloween Holiday Groove Family MusicLarchmont
10am–6pm Brick-or-Treat at LEGOLAND® New York Ages: AllAttractions Halloween LEGOLAND New York ResortGoshen
10am–7pm Brick-or-Treat: Monster Party Ages: 3 – 12Attractions Games LEGOLAND Discovery Center WestchesterYonkers
10am–3pm Cross County Center Halloween Spooktacular Ages: AllFree Halloween Cross County CenterYonkers
10am–noon Super Seedlings Ages: 3 – 8Environment Free Van Cortlandt Park Alliance Garden & Compost SiteBronx
10:30am–3pm Boo at the Zoo Ages: AllAnimals Halloween Trailside Museum and Zoo at Bear Mountain State ParkBear Mountain
11am–2pm 3–5pm Trick or Treat Trek Ages: 3 and upFestivals Fundraisers Bartow-Pell Mansion MuseumBronx
11am–3pm iSPY Halloween Trail Ages: AllHalloween Holiday Hudson Highlands Nature Center Outdoor Discovery CenterCornwall
11am–3pm All Hallows High School Open House Ages: 13 and upCommunity Free All Hallows High SchoolHighbridge
AMNY DOT releases limited edition Mariano Rivera street signs ahead of Yankees-Dodgers World Series opener