https://www.ontario.ca/page/licence-free-family-fishing#:~:text=Four times a year%2C Canadian,June 20-21%2C 2020)
Four times a year, Canadian residents can fish in Ontario without buying a fishing licence, during: Family Fishing Weekend in February (February 15-17, 2020) Mother's Day Weekend in May (May 9-10, 2020) Father's Day Weekend in June (June 20-21, 2020)