How to get to Harbin from Beijing (Haiden District) and how long is travel time.

Hi! We are on a tour in Beijing but planning to include Ice festival for 1 day.We are staying in Haiden District Beijing. What is the best mode of transportation and how long is travel the time? Is it possible to travel at night ? I read that opening will be on January 5 but we will be going on January 2,since this is a trial operation, how much will it cost? thanks in advance.