Grey Cup festivities in Toronto continue to ramp up ahead of Sunday’s big game with fun for football fans of all ages downtown Wednesday.

The head coaches of the Toronto Argonauts and Calgary Stampeders held a news conference at 11 a.m. at the Fairmont Royal York hotel. The Calgary squad arrived in Toronto on Tuesday night.

While the coaches talked shop fans gathered at Yonge-Dundas and Nathan Phillips squares for Argos-themed action, including dance and cheer competitions, food and music performances.

Click here for a full list of Grey Cup activities.

Thrill-seekers also have the chance to ride the tallest urban zip line in North America that runs through the towers at city hall.

Wednesday’s festivities will end with a ritzy gala in an unusual place: the field at Rogers Centre, where the boatmen and Stampeders will compete in the 100th Grey Cup final.

Celebrity chef Mark McEwan and Rob Gentile, the executive chef of the internationally-renowned King Street restaurant Buca, will be preparing food for the event.

On Tuesday, Young people gathered at Yonge-Dundas Square where Argos vice chair Mike “Pinball” Clemons delivered an inspiring speech.

On Thursday, the Argos will hit the field at Rogers Centre to practice and later that night the league will hand out the CFL player awards at Koerner Hall on Bloor Street.

A CFL street festival starts Friday and runs through to Sunday. The party will shut down Front Street between Simcoe and John streets and north to King. There’ll be beer tents, live entertainment, a tailgate party and a rib fest.

The Grey Cup game goes at 6 p.m. Sunday.

Calgary Mayor Naheed Nenshi kicked the rivalry between the two cities up a notch earlier this week when he invited Mayor Rob Ford to take part in a friendly CFL wager: the losing mayor will donate his weight in food to the winning mayor’s local food bank. There will also be a jersey swap for an upcoming council meeting.

The head of the Toronto Zoo challenged his counterpart to a friendly wager too. President and CEO John Tracogna said that if the Argos win, Calgary Zoo president and CEO Clement Lanthier would have to wear an Argos jersey and clean the penguin exhibit in Calgary. If Toronto loses, Tracogna would wear the Stampeder jersey and clean the Toronto Zoo’s giraffe house. Lanthier has accepted the wager.