Celebrate Halloween four days early with the Fifth Annual Kidz Karnival at Hudson River Park’s Pier 26 in Tribeca. Bring the kids in costume for face painting, mask decorating, wax hands, cotton candy, spin art, rides and more. Arts education organization The Story Pirates will perform Halloween-themed improv shows throughout the day. This event is open to all ages but geared toward children ages 2 to 8. Some activities cost $2; the rest are free.
Pier 26, West and North Moore Streets, 212-627-2020, noon, free