Today is the 13th annual Dairy Queen Miracle Treat Day across Canada.
All of the proceeds from each Blizzard sold will be donated to the 14 Children's Miracle Network hospitals.
Sarnia DQ Owner Lori Lunn says the funds raised locally will support Children's Hospital of Western Ontario in London.
Last year the Sarnia store raised the most money for the London hospital, $11,000.
There are over 600 stores across the country.