The Duke and Duchess of Sussex confirmed their appearance at the four-day event with their children Archie and Lilibet.
The Duke of York retired from public life in 2019 and the monarch announced on Jan. 13, 2022, that he will no longer perform public duties.
The model and the "Pirates of the Caribbean" star were in a relationship between 1994 and 1997.
The Duke and Duchess of Sussex's daughter will turn one year old on June 4, 2022.
Her Majesty started the walkabout in the 1970s as a way for her to meet and interact with the public during royal visits.
The Duke and Duchess of Sussex are said to be filming a Netflix reality TV show at their Montecito mansion.
The Duke and Duchess of Sussex announced their excitement to join the Platinum Jubilee celebrations with their children, Archie and Lilibet.
Samantha Markle has accused the duchess of making "false and malicious statements" about her during the Oprah interview.
The woman is accusing the couple of stealing her eggs
Duncan Larcombe said the Duke and Duchess of Cambridge want to ditch their titles during royal visits because they want to be seen as approachable.
The Duke and Duchess of Sussex announced they will join the Platinum Jubilee celebrations with their children Archie and Lilibet.
The Duke and Duchess of Sussex now only has the "Heart of Invictus" documentary as their first project with the streaming giant.