Kate has been amazing, Prince William says

The Princess of Wales is doing "really well" and has been "amazing this whole year", Prince William has said.

He was speaking to broadcasters ahead of presenting his environmental Earthshot Prize in Cape Town, South Africa later.

On his wrist the Prince of Wales was wearing a bracelet saying "Papa" made for him by his daughter Princess Charlotte for a Taylor Swift concert, which he said he had promised to wear on the trip and "try not to lose".

His wife has not travelled to South Africa as she recovers after treatment for cancer and will instead be watching the ceremony at home in Windsor.

Much of the prince’s visit to Cape Town this week has focused on young people and the power they have to bring about change.

"Without them the future is looking pretty bleak so these are the game-changers, the innovators, the inventors who are going to make the world a better place for us in future.”

This was something his own children, Prince George, Princess Charlotte and Prince Louis, were aware of, he added.

"Every family tries to do what they can to help with the environment and we go through the basics of recycling and making sure we minimise water use, turning lights off when you leave the house – we’re sensible with what we do around the environment. I think every family has those conversations."

But he added that Earthshot had far bigger ambitions.

"We’re trying to do big scale ambition and business. I’ve brought the children along on that journey and I hope they’re proud of what we are trying to do here which is to galvanise that energy and enthusiasm to make real impact.”