You won’t BELIEVE Prince George and Princess Charlotte’s £18,000 treehouse

Treehouses don't get much better than this...

We know that Prince Charles is very much a doting granddad. He's already dedicated a part of his arboretum in Scotland to his eldest grandchild, naming an area of it George's Wood. "I hope it will be quite amusing for George, as they grow up, and he grows up," the Prince said in a upcoming BBC documentary. It's not the only way that the nature-loving royal has encouraged his grandkids to appreciate the great outdoors. Prince Charles also turned the grounds of his Gloucestershire property Highgrove House into a kids' dream playground. He refurbished what was originally Prince William's childhood treehouse for George, Charlotte and Louis (once he's old enough to play on it, of course) back in 2015. The regal results make our muck filled sandpit and DoneDeal-sourced Dora the Explorer playhouse look a bit, well, shite.

Prince Charles has had his chainsaw out... look at Wills and Harry's old treehouse he's refurbed for Prince George! pic.twitter.com/B0sfZZ4Z6R

— Heart North West (@HeartNorthWest) July 29, 2015

According to the Express, Granddad Windsor splashed out £18,000 to refurbish the den that Princes William and Harry  played in as children along with a shepherd's hut complete with a bed, wooden floors and wood burner.

Prince George and Princess Charlotte have a royal treehouse thanks to grandpa Charles http://t.co/xvlZaF7GeX pic.twitter.com/kGxJ1jOpKd — Gertrude (@Gertsroyals) July 28, 2015

Big bucks for small tots. Not jealous or anything. If only Prince Charles was our grandfather.