We're arriving from HongKong to Longdongbao by air.

And hope to know how much time is the walking distance from Longdongbao Airport to Longdongbao Rail Station?
Also, how frequent is the train to Guiyang North Rail Station?
Where to buy tickets?
We're catching a pre-booked 3:28pm train at GY North rail station- is it faster to cab (taxi) from Longdongbao airport or use above?

Thank you!