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P&O Cruises has expanded the adults-only zone aboard its three ships.

The Oasis retreat is now available across two decks on Pacific Pearl, Pacific Dawn and Pacific Jewel.

The retreat offers passengers over 18 a place to escape the kids with  new pod-style lounges for two, cushioned deck lounges and sun beds.

Situated at the rear of all three ships, the Oasis retreat has a sea view and a bar. The Pearl also has two whirlpool spas.

Carnival Australia vice president hotel operation Sture Myrmell said the child-free zone has been in demand since it was first  introduced.

“There’s been a real demand for the space from our guests so we’re delighted that we can now provide even more room for them to relax and enjoy amazing ocean views,” Mr Myrmell said.