2.5 KM Reverse hike from the top of the Pisac ruins to the town of Pisac. Nice hike down to continue acclimating to the altitude of Peru.
The Opal Hills Trail is an 8 km loop trail with a peak of 2200 m elevation and a gain of 400 m. It takes approximately 3-4 hours to complete give or take time for rest breaks and scenery views.
If you are in the Banff area and you are looking for a somewhat shorter, easier hike then you should consider going to Johnston Canyon, an area formed by erosion of limestone by the Johnston river over thousands of years.