St Marys is welcoming triathletes to town over the long weekend.
Sixty athletes will be in the area as part of the Ontario Summer Games who will bike, swim and run across town.
Athletes will be swimming in quarry, biking in streets and running around the grounds of the Canadian Baseball Hall of Fame.
There will be a series of road closures in town on Friday and Saturday from 7am-12pm.
While roads will be closed, downtown businesses will still be open and operating as usual.