With its state-of-the-art facilities set in 52 acres of idyllic Berkshire countryside, Lambrook School is everything you'd expect of an establishment educating a future king.

And it was revealed last week that Prince George, 12, isn't just a day pupil at the co-educational independent school for three to 13-year-olds near Ascot, just a 10-minute drive from Adelaide Cottage - but also a boarder, like 75 per cent of students.

Prince William made the revelation on Heart radio on Friday, saying: 'George was boarding last night, Charlotte and Louis if you're listening, make sure you're on time please, make sure you're not fighting over who listens to what, this morning.'

Lambrook offers weekly and flexi-boarding for boys and girls aged seven onwards, with the Prince and Princess of Wales having the option to let George stay as little as one night a week on an ad hoc basis, with sleepovers booked online.

While it's unclear how often George boards at Lambrook, where fees for the term can cost up to £10,669, he's no doubt enjoying the school's 'first-class teaching and superb facilities', which include a 25-metre swimming pool, a nine-hole golf course, an astroturf, hard courts, a squash court, cricket and other sports pitches.

He's joined by Princess Charlotte, 11, and Prince Louis, eight, who attend as day students, and no doubt make the most of activities such as their mother, Princess Catherine's favourite beekeeping - and scuba diving.

In September, the future king will start secondary education, although it is still unknown which school the Prince and Princess of Wales will pick for their firstborn. However, Lambrook states that 95 per cent of their alumni go on to boarding secondary schools.

'The experience and independence gained [from boarding] at this slightly younger age is an extremely positive and helpful stepping stone for all that awaits them at their future schools and beyond,' Lambrook School's website reads.

'All boarders, whether weekly, flexible or occasional, are fully integrated into boarding life and are part of a home from home family environment where they eat, work and  relax together – making the most of the fantastic on site facilities. 

'In the summer months at Lambrook, swimming, cricket, golf and other outdoor games are played by all our boarders well into the evening. In the winter, indoor ball games, cooking and baking, movie nights, bonfire evenings and other such activities ensure that there is never a dull moment.'

The Good Schools Guide describes Lambrook as a 'classic prep school' with a 'heart of gold', and tells of how youngsters get to 'run and run' in the vast grounds with 'total freedom to explore, provided you've got your wellies on'.

Lambrook was founded in 1860 and two of Queen Victoria's grandsons, Prince Christian Victor and Prince Albert of Schleswig-Holstein, attended, with Victoria travelling from Windsor Castle to watch them in plays and at cricket matches.

Other famous alumni include the actor Alex Pettyfer, the sons of wartime Prime Minister Herbert Asquith and entrepreneur Giles Clarke, who founded Majestic Wine.

Lambrook has a Diamond Jubilee performing arts studio, dance studio and sports hall, and a £6million Queen's Building for ICT and academic learning.

The prospectus previously quoted one parent as saying: 'It's the most magical place for our children to spend time, and they can often be seen rosy-cheeked and perfecting handstands, throwing balls or racing to the tree stumps.'

There is school on Saturday mornings, followed by an afternoon of sports fixtures for pupils in Year Five and above. 

Lambrook, a Christian school, prides itself on its high academic standards, with a pass rate of 100 per cent for the Common Entrance exam - taken by private school pupils as part of the selective admissions process at age 13.

With 630 pupils, it is a larger than average pre-prep and prep school but billed as less pushy than its London counterparts.

Year Eight leavers join prestigious schools such as William's alma mater, Eton, Wellington College, Marlborough College, where Kate went, and Charterhouse, among others.

Headmaster Jonathan Perry is known for his charm and performed a rock-and-roll dance and jumped on chairs to cheer up pupils during lockdown.

His wife Jenny, works with the pastoral team, with the pair praised for their focus on emotional wellbeing, perfectly in line with William and Kate's campaigning on mental health.

Mr Perry says on the school website: 'We provide an enriching and exciting educational experience here at Lambrook, equipping and inspiring each child ready for the next stage of their educational journey and indeed, beyond.

'We recognise that all children are individuals and support and nurture them as they embrace the many opportunities on offer both academically inside the classroom and through our vast co-curricular provision.

'We encourage the children to give things a go and not be afraid to fail, and most of all, teach them that the most important characteristic for them to possess, is kindness.'

Lambrook's on-site orchard is home to pigs, chickens and rabbits, available to cuddle during tutor time, wellbeing walks, bees with hives, and visiting lambs.

Talk Education said there is a 'sense of delicious freedom' while the Good Schools Guide said one mother was 'mystified by how they get pupils back for lessons, but like clockwork they tumble in, ruddy-cheeked and full of fresh air'.

And parents enjoy the benefit of not having to deal with muddy PE kits. Games clothes are handed in at the start of term and remain there to be laundered by staff, before being sent home at the end of term.

Uniforms consist of blue and green tartan kilts for girls and navy corduroy trousers for boys, plus check shirts, navy pullovers and blue and green ties.

William and Kate can also immerse themselves in the school's busy social life amid reports of plentiful Lambrook get-togethers and helpful WhatsApp groups.

Overseas school trips include jaunts to the Isle of Wight, Dorset, France, Italy, Iceland and South Africa.

Sustainability - no doubt a hit with eco-conscious William - is also key with the children planting 400 saplings to create a new woodland.