Guilin Li River Cruise

My sons and I want to take an overnight train from Guangzhou on Monday, December 16, 2013 and arrive in Guilin on Tuesday morning, December 17 at around 6 - 7 am. First is the cruise available then and if so will we be able to catch the Li River cruise for that morning, logistically. When does the cruise leave port? What would the best method of transport be to get to the origination site of the cruise and would we have time to first stop at the hotel we have booked for that evening and check our luggage and then make it to the cruise?