public transport from Shuyuan Youth Hostel, Xi'an to Bailuyuan Ski Resort

Hi,
We are groups of 8 people from Indonesia and would like to go to Bailuyuan Ski Resort from the hostel.
What is the easiest way to use public transport from Shuyuan Youth Hostel Address: No.2 Shuncheng West Alley, Nanmenli Beilin to Bailuyuan Ski Resort ? thanks