The Grizzly Canmore Ultra Marathon and Relay stands out as one of Canada's premier ultra-running events, drawing a dedicated field of 1,400 trail enthusiasts each year. Participants can take on the challenging 50km solo course or join forces in a relay format with teams of 2 or 5. The route features stunning natural scenery, offering both beautiful landscapes and a demanding trail experience, making it a must-attend for serious runners seeking to test their limits.