Sweet celebrations are coming to two southern Ontario tourist towns this weekend, as butter tart festivals take centre stage. Both events are within a 90-minute drive of Toronto. So depending upon the direction you choose, you can take your pick or get an early start to the day and hit up both events in Collingwood and Fergus. Great Collingwood Butter Tart Festival The southern shores of Georgian Bay are the gateway to the Bruce Peninsula and the Blue Mountains.