The main trail network at Harmony Valley Park winds through hardwood forest, open meadows, and the ravine edges of Harmony Creek, offering a mix of easy walking paths and slightly steeper wooded sections. The route feels surprisingly natural for an in-city park, with shaded stretches, small bridges, and pockets of wetland habitat along the way. Multiple junctions let you create short loops or longer wanderings, and the wide paths make it suitable for relaxed walks, runs, and dog-friendly outings. A quiet, scenic trail system that gives Oshawa a reliable everyday nature escape.