Prince George, Princess Charlotte and Prince Louis are thought to be starting at Lambrook School near the Windsor Estate in September following a family relocation to Adelaide Cottage to be nearer to The Queen.
Lambrook charges an increasing annual fee as the children go through the school, meaning that the three Cambridge children's education will cost an incredible £71,344 a year.
When he joins in Year 1, Louis's annual fees will amount to £17,556, while Charlotte's will total £25,792 and George's will be the highest at £27,996 per year.
While the fees are very high, there are many benefits open to the students such as a wide range of extra-curricular clubs. These activities include bee keeping, polo, golf, fencing and public speaking.
Two clubs in particular will be especially useful to Prince George if he is to carry on a family tradition that The Duke of Edinburgh, The Prince of Wales and The Duke of Cambridge have all tried out.
It is clear that Prince George would hugely benefit from the many impressive extracurricular activities that Lambrook has to offer, but the swimming and scuba diving clubs will allow him to prepare for a very important family tradition that has passed from generation to generation.
Prince William became the third generation of the family to take on the presidency of the British Sub-Aqua Club (BSAC) in 2014, following on from his father, Prince Charles and his grandfather, the late Prince Philip.
Prince William - who has been the patron of Swim England since 2017 - was also the captain of the water polo team during his time at the University of St Andrews.
At an event William spoke to BSAC members and said: "It's a great honour to be here with my father and accept the presidency of the British Sub-Aqua Club, continuing that from my grandfather as well."
He added: "I hope that one day my son George might follow in our footsteps. For the moment bath time is quite painful, but I imagine as he gets a little bit older, donning a mask and snorkel might calm him down."
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Prince Charles then gave a farewell speech after being made an honorary life member of the organisation. He said: "I'm delighted that my eldest son is taking over from me."
The Prince of Wales, who has dived to the Tudor warship Mary Rose, as well as in the Arctic, said: "I can only assume that his interest probably stems from the fact that I threw him into the swimming pool on many occasions.
"Instead of putting him off, it actually enthused him, so I'm thrilled that he has decided to carry on the tradition started really by my father."
He added jokingly: "I know my eldest son will now demonstrate his buff credentials, by leaping bodily into this very welcoming - and I didn't realise existed - swimming pool."
During their royal tour of the Caribbean earlier this year, The Duke and Duchess of Cambridge visited Belize and stunned royal fans when they released a video of them scuba diving to the coral reef.
Prince William and Kate swam 300 metres down to the coral reef in Belize and shared the candid video with their fans on social media.
In the clip Prince William said: "It's really fantastic to see the underwater environment here in Belize and the wonderful work they've been doing to protect the coral and the fish life.
"Belize's work on marine protection is world-leading which is crucial when you're protecting the world's second-largest barrier reef. In fact, it's a UNESCO world heritage site.
"It's clear to see that Belizeans value their environment whether it's the marine environment or the land environment.
"It's great to see that their commitments are going further and further and we should support them and value their efforts to protect both the marine and the land environments."
