Stewart Falls is a great 3.5-mile roundtrip hike with stunning views of the falls and great opportunities to witness fall colors if you're hiking as the leaves change. This is a dog-friendly trail.
The canyon is closed during snowfall so this is only accessible between May-Nov usually. It is best during the fall when the leaves have changed color, but let's be honest, it's always great. Head up Provo Canyon and follow the signs to make a left going into Sundance. Follow the road past the ski resort and lodge until you see a parking lot on the left just near the kiosk entering the Alpine Loop.
The waterfall is beautiful and is located at the end of the trail (about 2 miles). It takes about 30min-1hr to get to the falls depending on how quickly you're moving. The falls are a great place to hang out or picnic and the whole area is shaded in the early afternoon. There is parking at the trailhead, but you need to pay 2 dollars to get a parking pass.