Sheridan College is having their own Global Game Jam, which you sign up for right here (there is 100 spots total), and check below for some details. You can follow signs to the Learning Common’s of the Trafalgar campus.
"The Global Game Jam® (GGJ) is the world's largest game jam event (game creation) taking place around the world at physical locations. This year, Sheridan College will be hosting a jam site of their own and strongly encourages game developers on the western side of GTA to join the event!
Meals will be provided Saturday and Sunday for registered participants. There will also be a random draw at the end with sponsored prizes from Unity and Ubisoft. Bring your own equipment and we look forward to seeing you there."