50K May ultramarathons in Ontario, Canada

Woodland trails with winding flats, rocky and root-strewn stretches, lake views, double loop format, and day or night running options in Wildwood Conservation.

Scenic 6.25 km loop through forest trails and gravel paths with hills at Shade’s Mills Conservation Area, offering distances up to 50 km plus 12-hour options.

20K loop over groomed trails and technical single track, featuring rolling hills and steep climbs amid Niagara Escarpment scenery and natural springs

Single-track trails through Mansfield Outdoor Centre and Dufferin County Forest, featuring pristine natural landscapes