The Grotto Falls trail is a fast and easy day hike along a shallow stream that ends at a nice waterfall. This is one of the easiest kid-friendly hiking trails we have ever done in Utah. The dirt trail to the falls is only .3 miles (making this hike total .6 miles round trip.) It only takes about 15 minutes! The Grotto Falls trail head is located on the Nebo Scenic Loop Road in Payson, Utah. It is not hard to find the well-marked trail ...