We are on the Oceania cruise line stopping in Guangzhou for one day. The boat docks at Huangpu port. We are trying to find out options to get from the port to downtown Guangzhou. We have a guide who will meet us downtown. I have contacted one car service and the cost will be over $200 for 8 hours? Do we need a car downtown? Can we do taxis to and from the port? Any other suggestions.