Trick or tree! Explore the mysteries of Marvin Grove and make the sidewalks your runway to debut your Halloween costume. We’re rolling the Spencer Art Cart outdoors for tricks, treats, and art activities among the trees. Team up and take part in a Monster Dash, make your own Spooky Stained Glass, test your imagination with Tricky Trivia, make a wand to cast spells, search the Grove for hidden surprises, step into the Swap Shop to trade for treats, and more. Costumed canines and grown-ups are welcome, too! Link here.