it's simple!
if you start from Guangzhou, you have to take a long-distance through train to Xinhui, which is Jiangmen Xinhui, not downtown Jiangmen!
Then take the bus to osawa Town at the new station of Xinhui. Since it's your first time, you'd better take the bus and get off at osawa main station, where there are more motorcycles!
Take a motorcycle and talk directly to "Apollo Ice Cream Factory". Remember, it's an ice cream factory! Then it's ok! It may take 31 ~ 41 minutes by bus! Motorcycles cost about 6 yuan!
good luck!