Here you go mogga
Princess Cruises continues to operate cruises that meet health authority requirements for sailing with at least 95% of guests aged 12 and over to be fully vaccinated for Covid-19 and Influenza. These cruises are available for guests who have received their final dose of an Australian Therapeutic Goods Administration (TGA) approved or recognised COVID-19 vaccine, with the last dose being administered at least 14 days prior to the beginning of the cruise and can provide proof of vaccination. In addition, where local regulations allow, we’re managing a process for exemptions. Guests with medical contraindications to the vaccine are permitted to travel, subject to pre-approval by Princess Cruises. Vaccination requirements do not apply to children aged 11 years and under.
Fully vaccinated guests must show proof of COVID-19 vaccination (with the dates of doses received) at the terminal prior to boarding. Failure to provide this evidence will result in denial of boarding.
Guests should always ensure they understand all requirements to travel from their home country to the destinations they plan to visit. Requirements are updated frequently, and official websites and apps developed by government agencies and tourism ministries are recommended sources for protocols.
A specific law is not required to implement vaccination requirements. Also, having vaccination requirements is not in itself unlawful. The cruising industry and Commonwealth, and Australian State governments have agreed to guidelines aimed at mitigating the risk of COVID-19, which includes a minimum of 95% of guests on each cruise must be fully vaccinated. Anyone aged 12 or over who holds a valid medical exemption as defined by the Commonwealth Government will be permitted to cruise as long as the unvaccinated group is less than 5% of the total number of guests on board. Children under 12 years old who are not fully vaccinated are permitted to travel, and there is no limit on the number of unvaccinated children permitted to sail.
Vaccination requirements do not apply to domestic New Zealand itineraries.
https://www.princess.com/plan/cruise-with-confidence/cruise-health/frequently-asked-questions/au-cruises/