A cruise ship with COVID-19 cases on board has docked near Perth, with most passengers free to disembark after returning negative tests.

The Coral Princess arrived in Fremantle on Friday, the first to visit Western Australia since a ban on large cruise liners was removed earlier this month.

Its operator Carnival Australia has confirmed it is managing a virus outbreak aboard the vessel which left Broome earlier this week.

Guests who returned negative rapid antigen tests were allowed off the ship on Friday morning.

"Over 90 per cent of people on board have returned negative tests in the last few days," Carnival president Marguerite Fitzgerald told reporters.

"Those that have COVID will be isolating inside their cabins. They will be looked after by our onboard medical crew.

"As far as they're concerned, they're going to still be having their cocktails and meals and be looked after until they come out of isolation and then they'll get back onto enjoying their cruise."

The ship will depart Fremantle on Saturday afternoon as it continues its circumnavigation of Australia.

Ms Fitzgerald said the company had met with business representatives in Fremantle who were excited to see cruise ships return.

WA Health said it was aware of the ship's outbreak but had not been asked for help in managing passengers.

It said all cruise ship operators visiting WA were required to report cases, abide by the national protocols and have their own COVID-19 plans.

People who contract COVID-19 while aboard vessels are advised to isolate for five days.

Large cruise ships have been allowed back in WA waters since October 1 after being banned in 2020.

There are also reports of cases being detected aboard the Quantum of the Seas, a ship expected to dock in Brisbane on Tuesday.

Meanwhile, the NSW government announced on Friday it would extend free access to RATs for concession card holders until the end of January.

Card holders can receive up to 10 free RATs over three months in the state.

WEEKLY VIRUS DATA BY JURISDICTION

* NSW: 10,050 new cases, 16 deaths

* Victoria: 8537 new cases, 51 deaths

* Queensland: 4447 new cases, 18 deaths

* ACT: 731 new cases, no deaths

* SA: 2851 new cases, five deaths

* WA: 5823 new cases, 19 deaths

* Tasmania: 902 new cases, one death

* NT: 273 new cases, one death.