Excuse me, should I go to Jinsixia Grand Canyon from Xi'an to Shangluo or Shangnan?

In Shangnan, Xi'an-Jinsixia, about 251 kilometers away, there is a tourist through train at the Xi'an Bus Station in Shaanxi Province (next to the railway station at No. 354 Jiefang Road). The one-way drive takes about 3 hours, and the round-trip is 99 yuan...<br/><br />Help you, please click the green [Accept]!

Just take the bus from Xi'an to Jinsixia directly, without going to Shangluo or Shangnan first. for reference.