Australian passport holders are able to obtain the visa on arrival. We recommend that you obtain the visa when you land in PNG. In order to be eligible for PNG visa on arrival, Australian passport holders must comply with the following:

• Australian passport valid for more than 6 months
• Return or onward ticket

The tourist visa is free just queue in the Visa On line when you arrive in PNG. 

You can also apply for your visa prior to arrival online. 

If you are not travelling on an Australian passport or you want more information about entry into PNG, including applying for the Visa online, visit their website by clicking here