Fireworks explode as the Royal Australian Navy warship HMAS Sydney sits underneath the Sydney Harbour Bridge during the 2013 International Fleet Review on October 5, 2013 in Sydney, Australia. Over 50 ships participate in the International Fleet Review at Sydney Harbour to commemorate the 100 year anniversary of the Royal Australian Navy&#39;s fleet arriving into Sydney. Prince Harry is an official guest of the Australian Government and will take part in the fleet review during his two-day visit to Australia.