Travelers are voting Gloucester Pool as the best lake near Orillia. There is 1 lake near Pembroke a city just 131 km from Orillia. The most popular of these is Round Lake near Pembroke. You can find 13 lakes in Ontario and 122 lakes in the country of Canada. Our members favorite in Ontario is Lake Nipigon and Great Bear Lake is the top pick in Canada. Want more? Check out our map of lakes near Orillia.