At Johnston Canyon, you'll wander along catwalks built right into the canyon walls, giving you an incredible view of the turquoise water rushing below. The trail leads you to two stunning waterfalls; the easy 1.2 km walk to the Lower Falls is a great option for everyone and takes about an hour for the round trip. If you're up for a bit more, continue another 1.5 km to the impressive Upper Falls, a journey that typically takes about two to three hours to complete for the round trip.