Does anyone know how to get from Huashan to Hukou Waterfall?

It is not easy to go there from Huashan. One way: take train from Huashan Station at 13:50 to Linfen, over 4 hours. Then take bus from Linfen to Yan'an, get off half way at Hukou. The other option is to get back to Xian from Huashan. Then go to there via Yan'an or Yichuan. Anyway, I suggest you give up the Waterfall. Ten hours on the way and one hour to see it? It is not that worthy I think. There are many other places to see in Xian.