Kate Middleton

Prince Harry has joked that while the charity trek he's about to embark on to the South Pole will see him fight extreme conditions and sub-zero temperatures his brother, William, is pretty jealous of him as he's managed to escape the "screaming child," appearing to refer to baby Prince George.

The 29 year-old is currently in the South Pole ready to begin the 16 day, 208 mile trek for Walking With the Wounded. The team made up of injured servicemen and women will have to contend with some of the most difficult conditions on earth.

But according to Harry, it's a holiday in comparison to little George's lungs.

"My brother's just quite jealous that I managed to get away from a screaming child," he joked to Sky News.

Prince Harry claims William would love to join him on the trek (WENN)

While William might be jealous, dad Prince Charles is reportedly a little worried about the excursion.

"My father was a little bit concerned, but I obviously try to keep him calm by telling him that the North Pole was the dangerous one because we were walking on a frozen ocean, whereas this one, although there's crevasses, hopefully the guide will take us around that," Harry revealed.

"But apart from frost bite and things like that, you should just be able to look after yourself."

Prince George at his christening in October (WENN)

While Harry gets ready for the trek his girlfriend Cressida Bonas has been keeping herself busy in London and on Saturday night. The leggy blonde headed to indie hangout Koko along with half-sister Isabella Branson to support their brother Jacobi Anstruther-Gough-Calthorpe whose DJ crew Housekeeping was launching a new event, Seven Deadly Sins at the famous venue.

Harry with his trek team in London before heading to the South Pole (WENN)

Jacobi, 30, threw the night following a successful stint at Lio club in Ibiza earlier this year. The dancer, who is separated from her boyfriend of 18 months for the next few weeks while he undertakes a charity trek to the South Pole with injured servicemen and women, didn't appear to be missing him too much as she partied until 3am, according to the MailOnline.

Cressida and sister Isabella reportedly partied until 3am (WENN)