Speculation is mounting about whether the King will be reunited with his son the Duke of Sussex during his brief return to the UK.
Harry has not seen his father in over a year and is reportedly open to meeting Charles, who has been receiving cancer treatment since early 2024.
Charles is thought to be in London having travelled from his Balmoral home where he has been spending his summer break.
His son is visiting the Centre for Blast Injury Studies at Imperial College London, an institution he has close connections with.
The duke has been carrying out a string of events since arriving back home on Monday and beginning a four-day working stay by leaving flowers at the final resting place of his grandmother Queen Elizabeth II to mark the third anniversary of her death.
Harry’s visit has reignited commentary about the state of his relationship with senior members of the royal family.
He remains estranged from his older brother the Prince of Wales, who travelled to Cardiff to learn about a pioneering mental health hub on World Suicide Prevention Day, with no prospect of the pair meeting.
In February last year Harry made a transatlantic dash from his Californian home to Britain to see his father following his cancer diagnosis.
The move showed both sides were willing to put their strained relationship on hold and since then there have been further developments.
Senior aides to Charles and Harry where pictured in the Mail On Sunday during a meeting in London this summer that was reportedly a step towards restoring the relationship between the duke and the royal family.
Harry was all smiles as he arrived at the Centre for Blast Injury Studies in White City, west London, and was pictured with former Army captain David Henson, who served as Team GB captain for the inaugural Invictus Games, founded by the duke for wounded and sick military and veterans.
Mr Henson lost both his legs above the knee after standing on an improvised explosive device in 2011 while clearing a compound in Afghanistan. He went on to gain a PhD in Amputee Biomechanics at Imperial.
Harry opened the Centre for Blast Injury Studies in 2013, which was the forerunner of Imperial’s new centre which was launched a few years ago on its White City campus.
