Where and which train station can we get to Guangzhou railway station from Zhuhai Gongbei port?

Cos, we'll be carrying our luggage along. We could take a taxi to train station, but am not sure which address and which way to take the bullet train to Guangzhou.. We intend to stay in ZH for a day, then stay 6 days in Guangzhou, after that return to ZH for 3 more days.. Pls guide us! Tks!