We love this place: Natural water slide in Alpine, UT. Head North on Alpine's Main Street and then take a left on Fort Canyon Road, which you will follow for about one mile. After you cross a small river surrounded by foliage there will be a gate on your left leading to a field full of construction equipment. Follow the road up to the top, Where the pavement ends, a dirt road begins, and to the left of that road is a small dirt path leading through the trees.
List of waterfalls and swimming holes in Utah. One description I found funny "A word of caution: The hot pots here are very nice. Sadly, they attract a good number of people who enjoy soaking in the nude... If you hike it be prepared to see totally nude people soaking in the water, relaxing on rocks and hiking the trail."
List of waterfalls and swimming holes in Utah