Train schedule to yabuli nan

Hi, Sun.
Where did you get the train number K7011/K7012. I helped you to check, but did not find this trian on the official website, so it does not reach YBL.
If you want to reach YBL South, K7047 can take you to reach directly.

Thanks for your reply, I have found it from this page mentioning there are K7011/7012 from Harbin to YBL. I also don't find the schedule too.

So that means if I would like to go YBL ski resort. I have to depart from Harbin East via K7047 to Yabuli South in the morning, Is that right? Is this the only train in the morning?

Hi, I helped you to check it and found that the K7011/K7012 was replaced by K7047.
You need to depart from Harbin East to YBL South in the morning and this is the only train to YBL South in the morning. There is another train at around 08:28 from the Harbin Railway Station to YBL Railway Station.

Many thanks! Do you think we have to go buy the ticket in advance?

It is recommended to book the tickets online in advance. The website you are visiting helps, TravelChinaGuide. Their email address is bookingtravelchinaguide.com
May help!