Zhuhai VOA

Hi, we are a party of 4 adults. can you advise what is the China Visa requirements if we hold australia or new zealand passports. We will be visiting Hong Kong next week and plan to travel by private transfer using 7seater crossing the HKMZ Bridge into Zhuhai. Then we plan to spend 2nights in Chimelong Zhuhai. Appreciate your prompt response. Thank you.