Bus from macau to guangzhou.

The bus will cost you about 70RMB. The time for the journey is hard to tell you, because you have to pass the port in Gongbei Port. If there are a lot of people waiting for passing the port, it will cost you a long time.
The time from Gongbei to Guangzhou will cost you about two hours and a half.
It is suggested to take the bus from Gongbei to GZ by yourself instead of taking the cross-border bus from Macau.