Johnston Canyon is a popular hiking spot in Banff National Park and it is about 10 minutes out of town. The hike first goes to the Lower Falls and then to the Upper Falls at the end and it is a one way hike. This hike takes you through dramatic canyons with waterfalls and cliffside walkways. The Lower falls are a short walk from the trailhead, and the upper falls are slightly longer. It is an easy hike in the area all in all!
Stats to Upper Falls: 5.5km return, 255 meters (2 hours)
If you are there in summer it is probably one of the busiest hikes in Banff so try to go early to avoid crowds, it does not get that busy in winter.
We did it in winter and it was seriously a winter wonderland, the frozen waterfall were insane. Highly recommend bringing crampons in winter. It is 5.5km return to the upper falls and has little elevation gain. It is only half of that distance to the lower falls, but i do recommend doing the whole thing.
Johnston Canyon to Upper Falls, Alberta, Canada - 9,949 Reviews, Map | AllTrails