Waterfall itself is beautiful, you can swim and enjoy the nature and...bunch of plastic. Rubbish is common in all places but come on, if there's this little entrance fee at least it could be used for simple maintenance.
If you love waterfalls then you must stop. There’s a nice viewing area right by the parking lot. If you’re already going to Old Faithful take the extra 2mi drive to see this.
We joined the visit at the Waterfall with Okatse Canyon and Prometheus Cave. Very nice place to have a bath and relax at the pool. Even though it was May so the water was very cool it was great!