These are three very pretty, and fairly easy trails for running, all accessible from town. They can be run standalone or combined to make for a longer run. More path than ‘trail’.
Bow River Trail. A wide gravel path following both sides of the river, right from downtown Banff. This is flat path is 1.8 km on the east side of the river, from Gopher St. to Buffalo St., though it’s worth continuing for another ~0.5 km to the Surprise Corner Viewpoint — where you can connect to the Hoodoos Trail. On the west side of the river, the trail is 1.1 km, from Glen Ave. downtown to just past the Bow Falls View Point. Doing both sides, out and back, would be ~7-8 km (4.3-5 miles).
Hoodoos Trail. From the Surprise Corner Viewpoint, this trail descends to the Bow River and runs under the cliff face of Tunnel Mountain, with nice views of these unique rock formations. It’s 4.4 km (2.7 miles) one-way to the Hoodoos Viewpoint at Tunnel Mountain Rd. Fairly wide and flat with a couple of small hills. Good to combine with the Bow River Trail for a longer run. MAP
Fenland Trail. This is a flat, 2 km (1.3 mile) mainly wooded loop through a white spruce forest along the banks of Forty Mile Creek. Combine with Bow River Trail (0.5 km south on Mt. Norquay Rd., crossing the train tracks, or Vermilion Lakes Drive. MAP