The Duke and Duchess of Sussex's trip will centre around the Invictus Games Sydney 2018, the Paralympic games founded by Harry for wounded, sick and injured service men and women.
More than 500 veterans from 18 nations will compete in 11 sports from October 20 to 27 and the couple will attend several of the events.
Now, as the occasion draws nearer, Kensington Palace has announced the couple's exact dates.
Harry and Meghan will follow the below schedule:
Tuesday October 16: Sydney, Australia
Wednesday October 17: Dubbo, Australia
Thursday October 18: Melbourne, Australia
Friday October 19: Sydney, Australia
Saturday October 20: Sydney, Australia
Sunday October 21: Sydney, Australia
Monday October 22: Fraser Island, Australia
Tuesday October 23: Suva, Fiji
Wednesday October 24: Suva, Fiji
Thursday October 25: Nadi, Fiji and Nuku’alofa, Tonga
Friday October 26: Nuku’alofa, Tonga and Sydney, Australia
Saturday October 27: Sydney, Australia
Sunday October 28: Wellington, New Zealand
Monday October 29: Wellington and Abel Tasman, New Zealand
Tuesday October 30: Auckland, New Zealand
Wednesday October 31: Rotorua, New Zealand
The palace said in a short statement: 'Their Royal Highnesses have been invited to visit the Commonwealth Realms of Australia and New Zealand by the countries' respective governments.
'The Duke and Duchess will visit Fiji and Tonga at the request of the Foreign and Commonwealth Office.
'The programme across these four Commonwealth countries will focus on youth leadership, environmental and conservation efforts, including the dedication of several new Queen's Commonwealth Canopy projects, and the recovery and rehabilitation of servicemen and women through the Invictus Games Sydney 2018.'
David Beckham and Princess Mary are believed to be joining the couple in Sydney for the Games.