LONDON (AFP) - Britain's Prince Charles and his wife Camilla are to visit Australia and New Zealand in November, the office of the heir to the throne announced on Tuesday.

Charles, 66, and Camilla, 68, will tour the two countries from Nov 4 to 15, visiting 12 different cities and towns including New Plymouth, Auckland, Sydney, Perth and Albany.

The tour comes after Charles's son Prince William and wife Kate's successful visit Down Under last year, where the young royals drew crowds of thousands as they showed off their baby son George.

The Prince of Wales and The Duchess of Cornwall will mark the centenary of the Gallipoli campaign of the First World War on their trip, visiting the National Anzac Centre in Albany and viewing the point at which troops departed.

"The programme also reflects The Prince and Duchess's strong relationship with the military in both New Zealand and Australia," the statement from Charles' office said.

The two will visit the national war memorials of both countries, and will be in the Australian capital Canberra for Remembrance Day on Nov 11, marking the end of hostilities the First World War.

Charles will spend his birthday on Nov 14 "with Western Australian families at a beachside barbeque in Cottesloe", the statement said.

If Charles becomes king in the future as expected, he will become monarch of both Australia and New Zealand, which were once part of the British empire but are now independent.

Charles and Camilla previously visited New Zealand and Australian as part of a tour marking the 60th anniversary of the accession of Queen Elizabeth II to the throne.

She has since become Britain's longest-serving monarch, reigning for 63 years and surpassing her great-great-grandmother Queen Victoria.

It will be Charles' ninth visit to New Zealand and the 15th time he has been to Australia, while Camilla will be making her second trip to both countries.