CANNABIS DAY - The organizers of Cannabis Day need your help. Become a volunteer! Running Canada's largest Cannabis Day event and open-to-all Marijuana Farmers Market takes a lot of work, but it is also a lot of fun. Join our volunteer army and help make Cannabis Day happen! Cannabis Day has grown so much in size that we need as many volunteers as we can gather to help with vendor booth placement, stage setup and coordination, security, first-aid and grounds management.