Prince Frederik and Princess Mary visit Australia

Denmark's Princess Mary and her husband Crown Prince Frederik look out over the ocean fog during their visit to the Sculpture by the Sea exhibition near Sydney's Bondi Beach on Nov. 20, 2011. The prince and his Australian-born wife were greeted by cheering crowds as they inspected seaside sculptures and enjoyed pedal-powered smoothies.

This marks their first official visit as guests of the Australian government since 2005. They have made private visits to Australia in 2006 and 2008.

The crown princess was born Mary Donaldson in Hobart, Australia, on Feb. 5, 1972.

Princess Mary of Denmark and Crown Prince Frederik of Denmark share a joke during there visit to Sculpture by the Sea on Nov. 20, 2011, in Sydney, Australia.

Their six-day visit to Australia will include stops in Canberra, Melbourne, western Victoria and Broken Hill.

Denmark's Princess Mary and her husband, Crown Prince Frederik, admire the view near the fibreglass artwork "Who Left The Tap Running?" by Australian artist Simon McGrath at the annual Sculpture by the Sea exhibition near Sydney's Bondi Beach on Nov. 20, 2011.

Princess Mary of Denmark and Crown Prince Frederik of Denmark attend the award ceremony for the Sculpture by the Sea exhibition on Nov. 20, 2011, in Sydney, Australia. The royal visit began in Sydney, before heading to Melbourne, Canberra and Broken Hill.

Crown Princess Mary famously met Crown Prince Frederik at a pub during the 2000 Olympics in Australia.

Princess Mary of Denmark and Sydney Lord Mayor Clover Moore arrive at the opening of Curating Cities: Sydney-Copenhagen at Customs House on Nov. 20, 2011, in Sydney, Australia.

Princess Mary of Denmark and Crown Prince Frederik of Denmark attend a BBQ at Garden Island with Australian and Danish business leaders during there Australian visit on Nov. 20, 2011, in Sydney, Australia.

The couple got married in Copenhagen in 2004.

Crown Prince Frederick of Denmark and Princess Mary of Denmark attend a BBQ with special guests at Garden Island on Nov. 20, 2011, in Sydney, Australia.

It is the couple's first visit to Australia since Princess Mary gave birth to twins Prince Vincent and Princess Jospehine, who are now 10 months old.

Denmark's Crown Prince Frederik and his Australian-born wife Crown Princess Mary ride an Australian Navy boat across Sydney Harbour on Nov. 20, 2011, in Sydney.

Princess Mary of Denmark arrives at the Hotel Sofitel Wentworth during her visit to Australia on Nov. 21, 2011, in Sydney, Australia.

Denmark's Crown Princess Mary tastes food during a cooking demonstration by Danish chef Rasmus Kofoed in Sydney on Nov. 21, 2011.

Crown Princess Mary of Denmark enjoys a lighter moment with Australian chef Matt Moran during a Danish Agriculture and Food Council's demonstration of Danish gastronomy in Melbourne on Nov. 23, 2011. Mary and her husband, Crown Prince Frederik, are leading a business delegation in Australia investigating green energy, sustainable living and food technologies in a bid to enhance trade and investment ties.

The governor of New South Wales, Marie Bashir, Crown Prince Frederik of Denmark and Princess Mary of Denmark walk the gardens of Government House during their visit to Australia on Nov. 21, 2011, in Sydney, Australia.

Princess Mary of Denmark signs the Government House guest book during her visit to Australia on Nov. 21, 2011, in Sydney, Australia.

Princess Mary of Denmark is given a tour and demonstration in the radiation oncology unit at Westmead Hospitals Cancer Care Centre on Nov. 21, 2011, in Sydney, Australia.

Denmark's Crown Prince Frederik and Crown Princess Mary walk the gardens of Government House in Sydney on Nov. 21, 2011.

Denmark's Crown Princess Mary meets a child whose mother suffered with cancer during a visit to the Westmead Hospital Cancer Care Centre in Sydney, on Nov. 21, 2011. It is Princess Mary and Crown Prince Frederik's first visit to Australia since she gave birth to twins Prince Vincent and Princess Jospehine, who are now 10 months old.

Denmark's Crown Prince Frederik presents the Danish export association's honorary diploma and HRH Prince Henrik's medal of honor to PowerSense CEO Brian Sorensen during a business delegation lunch in Sydney on Nov. 21, 2011.

Crown Princess Mary of Denmark visits the newly re-named Crown Princess Mary Cancer Center Westmead on Nov. 21, 2011 in Sydney, Australia.

Crown Princess Mary of Denmark meets with Isabella Moon, 8, Mathew Moon, 12, and Saskia Moon, 10, as she visits the newly re-named Crown Princess Mary Cancer Center Westmead on Nov. 21, 2011, in Sydney, Australia.

Prince Frederik of Denmark tries the Archimedes Screw water pump at the Darling Quarter water playground on Nov. 21, 2011, in Sydney, Australia.

Crown Prince Frederik of Denmark and Princess Mary of Denmark attend the Danish ambassador's dinner at Doltone House, on Nov. 21, 2011, in Sydney, Australia.

Denmark's Crown Prince Frederik arrives at RAAF Fairbairn Base in Canberra, Australia on Nov. 22, 2011.

Princess Mary of Denmark is greeted by Australian Prime Minister Julia Gillard as she arrives at Parliament House on Nov. 22, 2011, in Canberra, Australia.

Princess Mary of Denmark and Prince Frederik of Denmark talk to artist Jiawei Shen while standing in front of a painting of Princess Mary at a portrait gallery in Canberra on Nov. 22, 2011, in Canberra, Australia.

Denmark's Crown Princess Mary and Crown Prince Frederik lay a wreath at the Hall of Memory during their visit to the Australian War Memorial in Canberra, Australia, on Nov. 22, 2011.

Denmark's Crown Princess Mary and Crown Prince Frederik wave to people during their visit to the Australian War Memorial in Canberra on Nov. 22, 2011.

Princess Mary of Denmark greets and receives flowers from Catherine Babie at the Hotel Sofitel Melbourne for the official opening of the State of Green - Join the Future Think Denmark, on Nov. 23, 2011, in Melbourne, Australia.

Prince Frederik of Denmark and Princess Mary of Denmark visit Corporate Culture and Cult on Nov. 23, 2011, in Melbourne, Australia.

Denmark's Crown Prince Frederik and Crown Princess Mary arrive at a dinner event in Melbourne on Nov. 23, 2011. Crown Princess Mary and husband Crown Prince Frederik are leading a business delegation in Australia investigating green energy, sustainable living and food technologies in a bid to enhance trade and investment ties.