Mall-O-Ween - Green Acres Mall Date: 10/27/12 Hours: 11am-2pm Ages: ALL Address: 2034 Green Acres Mall - 516-561-7360 Valley Stream, NY 11581 greenacresmallonline.com Description: Green Acres Mall will be hosting its annual Mall-O-Ween Event. Everyone is encouraged to wear their halloween costume and join in the fun. There will be pumpkin painting contests, costume contest, FREE giveaways, trick or treating and lots more.