The event, which begins at 10:30 a.m. at the gazebo near the park's main beach, raises funds for cancer research.
In 2012, millions of Ontarians participated in 225 community runs and 3,900 school events, raising close to $12 million for cancer research.
The events are in memory of Terry Fox, who in 1980 decided to run across Canada on a prosthetic leg to raise funds for cancer research.
After running almost a marathon a day for 143 days, he was forced to stop when his cancer returned in his lungs. He passed away the next year.
For more information about the event, visit www.terryfox.org or phone 1-888-836-9786.