From OC Transpo

Canada Day is right around the corner and will be jam-packed with fun for everyone! On July 1, @OCTranspo service is FREE all day long. If you're going to Lebreton Flats, take Line 1 or a bus to Lyon station. Customers with accessibility requirements should use Pimisi Station. Para Transpo pick up and drop off is on Vimy Pl. next to the museum's Group Entry area
https://www.octranspo.com/en/news/article/canada-day-weekend-service/