Firstly, you have to apply for a HK Visa before leaving. From Guangzhou to HK, you could take a train from Guangzhou East Railway Statin to arrive at Hk Hung Hom. Then, you could take a ferry to Central where you could transfer to HK MTR to disneyland. Or, you could take a city-bus to Kowloon from Hung Hom and then take MTR to the park.

There are also buses running from Guangzhou city to HK. The buses could be catch at Hotel Landmark Canton, China Hotel, Guangzhou White Swan Hotel, Holiday Inn City Center, Guangzhou International Hotel respectively. Most of them will stops at the MTR station in HK.

From Shanghai to HK, it is suggested that you take a flight between these two cities, vice versa. When you arrive at Hk airport, there is bus could take you to Disney directly.