Sorry, I know this question has been asked before many times, but assuming if I am staying in 7 Days Inn, 40 Admiralty(Dajinchong) Road, Baiyun, how do I get on the train to get to Hong Kong? Is a day trip manageable? Anyone knows where I can find the train schedule from GZ-HK and HK-GZ? Never taken the train before so thought i give it a try. Thanks.