Prince George and Princess Charlotte's impressive skill REVEALED

Prince George and Princess Charlotte have been spotted doing something quite impressive in a park in London...

The royal duo are currently enjoying summer holidays, and turns out that one of their favourite activities is just like any other children - riding their bikes outside.

The sighting was first reported by a fan account on Twitter, alongside a snap of the brother and sister riding their bikes in a central London park.

While George was riding his blue bike and wearing a red helmet, little Charlotte was seen riding a pink bike and wearing a blue helmet.

They were both under the supervision of their nanny Maria Teresa Turrion Borrallo, so presumably Kate stayed behind to care for baby Louis.

But while riding their bikes is a normal thing for many children, it's quite impressive that both George and Charlotte are already pros on their bikes, and can ride them without stabilisers! As Kate and Wills' children are only five and three-years-old, we bet they're very proud that they have already achieved such an important milestone.

It's not clear when the George and Charlotte were seen riding their bikes, as it's also been reported that the Cambridges left the country last week to spend a relaxing holiday in the island of Mustique, in the Caribbean.

The family of five are thought to have gone to the exclusive resort with Kate's family, and spent Prince George's birthday there, as he turned five on Sunday.

George and Charlotte clearly have a lot of fun playing together

George and Charlotte's passion for riding bikes had already been previously reported last year.

Speaking at an official event in May 2017, Kate told professional cyclist Frank Schleck that the two little royals - who were two and three-years-old at the time - were already learning to ride their bikes and were always excited about it.

He told local media at the time: 'We talked about how they [children] really appreciate riding a bike. She said their kids have bikes and that they’re always excited about trying to ride.

‘For kids, it’s great because they can exercise and – as long as it’s safe – go to school without their parents.’