Family bike community event, including bike to bike trick or treating, costume wearing, a safe well marshaled ride on mostly off road and protected bike infrastructure of Arlington, Cambridge and Belmont. Start at Magnolia Park and ending at Joey's Park. Wear costumes. Parents must accompany kids. For more information or to register, see https://www.familybikeride.org/halloween
Free to attend, donations are encouraged to cover the costs of this parent-organized event.