Huangguoshu was one of my favorite things we did in Guizhou Province! I highly recommend purchasing this ticket. Once at the main Visitor Center, simply present your passport and they will give you the physical ticket. This ticket included the escalator ride and internal bus transportation, but it does not include the water curtain cave so if that is something you want to do, look into booking that in advance. Huangguoshu is a lot of walking with spectacular scenery! Wear comfortable shoes and sunscreen and get ready to have an amazing time! ☀️🏞❤️