Hello I am travelling from Xian to Yellow Mountains in April.

You may take a bullet train to HS North from Xian North Railway Station. The train departs at 10:31, and the trip takes about 8.5 hours. A second class seat costs CNY 664.5; a first class seat costs CNY 1,086.5; a business class seat costs CNY 2,098. Upon arrival, take a bus to the mountain. The buses are available from 9:00 to 19:00 at hourly intervals. The fare is CNY 20, and the trip takes about 1 hour.