The old faithful fountain is a big fountain, it is sprayed every hour, the scene is quite spectacular. It is recommended that you go to the visitor center to determine the time of the fountain when you go, (the visitor center has time prompts) so that you can avoid some time waiting, and then you can visit the souvenir shops of the old faithful town and eat. At the same time, there are hotels in the old faithful town. The hotel's visual landscape is very good. It is facing the old faithful fountain. If you want to stay in the hotel, you must book at least 4 months in advance. (Summer peak season) I have not booked 3 months in advance. Old faithful also has many small hot springs, you can stroll around.