How to from Hong Kong to Guangzhou? You can by Air, by Train, by bus, and by Ship.
1. By Bus
From Hong Kong Airport about every 20 minutes from 8:00 to 20:00
Duration: about 4 hours, Price: HK$110
2. By Train
Taxi or Metro to Hong Kong Hung Hom Station, then by train to Guangzhou East Station.
Duration: 1 hour and 50 minutes, Price: HK$190
Metro to Kowloon then Express Railway
Duration: 1 hour, Price: HK$250
3, By Air.
Guangzhou Baiyun International Airport(CAN) is located at the junction of Renhe Town in Baiyun District, XinhuaStreet, Huashan Town and Huadong Town in Huadu District, approximately 45 kilometers away from Canton Fair Complex. Every day thousands of flights bound for places all over the world. The airport is convenient with shuttle buses running back and forth in urban areas. Metro and expressways are easily connected with Canton Fair Complex.
4. By Ferry
From Hong Kong Airport every 10:30 15:20 18:40
Not suggest. But if you have time and going to Nansha district, you can find the information at the Guangzhou Lianhuashan Port
After get to Guangzhou, you can taxi or Metro to Canton Fair Complex: Take Metro Line 3 (in the direction of Panyu Square Station) to Kecun Station, change to Line 8 (in the direction of Wansheng Wei Station) , and exit at Xingang Dong Station (for Area A) or Pazhou Station (for Area B or C).