Holiday Open House with Santa's Workshop Sunday, December 3, 2017 1:00-4:00 pm In Havens House Museum & Havens Barn A Holiday Celebration for all ages! Have your picture taken with Santa. Create holiday gifts, ornaments, and decorations. View the Shelter Island School Art Show. Join in a holiday Sing-Along. Visit the beautifully-decorated Museum. Shop for Island-made items in our store. Participation is free; donations gratefully accepted.