By Lisa Young, BBC News
BBCKing Charles III and Queen Camilla will visit Jersey on Monday and Guernsey on Tuesday.
It will be the first time since 2005 a British monarch has visited the islands when Queen Elizabeth II came to the island.
The King and Queen are due to visit Jersey’s States Assembly and Royal Court, and in Guernsey a centuries-old ceremony of homage to His Majesty will be held on the St Peter Port seafront.
The States of Guernsey said the King and Queen were not able to go to Alderney and Sark due to “time restraints” but representatives from those islands would be present.
Events in Jersey taking place on Monday are centred around St Helier and include a 21-gun salute and a visit to the Jersey expo event.
The King will present new King’s Colours to the Jersey Sea Cadets – in what is the group’s 75th year – and emergency service workers, veterans and youth groups will carry out a march past the Pomme D’Or Hotel.
After a community tea party in Liberation Square, King Charles and Queen Camilla will travel to Government House.
In Guernsey, the royal programme is due to include meeting local politicians and other events along the seafront before a visit to Les Cotils to learn more about the island’s environment, heritage and traditions.
The showcase will include the ongoing work to promote Guernesiais – or Guernsey French, local food production and biodiversity initiatives.