Arthur, 22, took part in the 2,000 mile GB Row Challenge around the UK last summer. His team, who were all living together at the time, were able to participate in the event during the pandemic – the only group able to do so amid the coronavirus outbreak.
In a Q&A video for the gym where he works, BoundFitness, Arthur, spoke about his preparation for the challenge, which he said was very physically demanding.
Arthur, who is the son of Princess Margaret’s daughter Lady Sarah Chatto, also spoke about his decision to join the British Marines.
He was 21 when he took on the Row Challenge on July 8 of last year, which he finished about five weeks later on August 16.
He has now revealed the intense diet he followed to get back into shape.
Arthur said the ‘mental’ training involved an hour and a half of rowing each day with an hour-long extra strength session, reports Online Mail .
There would also be a two hour weight training session twice a week mixed with “cross fit style” metabolic circuits.
“We called them endurance circuits and they were about two hours long, so it was just nice and varied,” he added.
Speaking of the challenge itself, the young royal said the challenge route was a particularly difficult aspect of the task.
“You have the Irish Sea, you have Scotland, you have the North Sea, and so you can never settle into a rhythm because wherever you go it changes and it is different,” a he declared.
The rowing team raised money for Just One Ocean as well as the British Red Cross – a move, according to Arthur, inspired by the charity’s work during the pandemic.
Arthur was greeted on arrival at St Katherine Docks in London by his girlfriend Lizzie Friend and family.
His incredible accomplishment of the challenge came before the announcement that he would be the first royal to join the Marines – which makes the Queen “proud”.
An insider said: “Arthur Chatto has been accepted for officer training in the Royal Marines.
“He told the Queen everything and she is happy and proud. Arthur has even gone out into the wild at Balmoral with all his gear and is camping as he prepares for commando training.
Arthur juggled his geography studies at the University of Edinburgh with his work as a personal trainer at BoundFitness Gymnasium.
The ‘inclusive’ gym opened last year and is described online as focusing on the ‘mental health benefits’ of exercise.
A profile of Arthur shared on Instagram describes the young royal as a ‘level 3 personal trainer’ specializing in strength and endurance training with a ‘military orientation’.
He would have taken personal training because it helped his mental health as well as his physical health, and he wanted others to enjoy these benefits.
Arthur is the grandson of the Queen’s late sister, Princess Margaret. Her mother is Lady Sarah Chatto, Margaret’s only daughter, who is said to be Her Majesty’s favorite niece.
He is 29th on the throne and previously had huge success on his now deleted Instagram Account.