Prince George, Princess Charlotte and Prince Louis seen waiting to greet mum Kate and William in sweet video

Prince George, Princess Charlotte and Prince Louis have been spotted waiting to greet their parents as they arrive back from work in a sweet video shared on social media.

Kate and William will often be away for a whole day or even a few days on their official royal engagements, and sometimes that means leaving their little ones behind.

The little trio is well looked after by their nanny Maria - when George and Charlotte are not in school - but they were clearly very excited to see their parents return for a day of royal duties in Cumbria.

The pair travelled to Keswick where tried sheep shearing and joined in a environmental educational session on the Ullswater Way, and Kate revealed that they had taken a secret trip to the region with their little ones.

In a video shared on Instagram fan page Tea Time With The Cambridges, Kate and William are seen rushing back home from where their helicopter landed, as their children eagerly wait by the gate.

Fans even seem to think they can hear the Cambridge kids giggling away with excitement and Charlotte shouting ‘Mama’.

The video pans out when the Duke and Duchess approach the gate, most likely to protect the privacy of the children.

Royal fans were quick to gush about the sweet moment, with one saying: ‘Omg that is soo cute Charlotte would've missed her mum so much.’

Another commented: ‘Awww I love it!!! I definitely hear one of them saying Mama. I agree it sounds like Charlotte. And such a cute giggle.’

RELATED: Kate Middleton reveals the ONE thing she does each day to improve her children’s happiness

However, others think it was likely Louis who sweetly shouted when he saw his mum.

One wrote: ‘I heard Louis crying ! He is so cute ❤️’

Another said:’ More likely it's Louis voice, too childish for Lottie, she's a big girl already.’