Flowing through the east side of Oshawa, Harmony Creek winds through wooded ravines, open meadows, and wetlands before joining the Oshawa Creek system. Much of the creek is bordered by multi-use paths and natural corridors, giving walkers and cyclists steady views of the water as it moves through shaded bends and grassy floodplain sections. Seasonal changes are noticeable here — higher flow in spring, clear shallow riffles in summer, and strong colour along the banks in autumn.