Rogers Bayfest is an annual music festival in Centennial Park - downtown Sarnia, Ontario, Canada - that takes place in July each year.
Since 1999, Rogers Bayfest has grown from attracting a few thousand visitors to approximately 100,000.
The festival involves and benefits a number of charities and capitalizes on the hometown feeling and the festival environment. However, several local residents living in and around the park have made complaints with regard to noise, garbage, drunkenness and public urination.
As of 2009, Bayfest is split into two weekends: The first being Rock acts which play Thursday, Friday and Saturday, and the second being Country, which play the following Friday and Saturday. The festival also was the winner of Ontario Tourism's Best Business/Event of the year 2009.
For the 2010 Bayfest, an additonal show has been added on the Sunday of the country weekend.