St Marys will be home to the triathlon end of the Ontario Summer Games.
St Marys will host swimming in the quarry, cycling along the streets and running around the grounds at the Canadian Baseball Hall of Fame.
The Ontario Summer Games host more than 3500 participants taking part in 18 sports.
Over the course of the games its expected to see streets being closed for the event where athletes will be taking part with businesses still staying open and operating as usual.
