Extreme sportsman Ross Edgley set to swim around Britain's coast without touching dry land once

• Video report by ITV News Reporter Ivor Bennett

It's around the time of year that many consider braving a dip in the sea....but Ross Edgley is going that little bit further.

He's preparing to take on the challenge of swimming all the way around Britain's coastline in 100 days without touching dry land once.

The extreme sportsman will set out on his quest from Margate on Friday.

He will brave the risk of strong currents, jellyfish, and icy waters as he makes his way around the coastline.

But he says among the biggest challenges will be getting in the minimum 10,000 calories per day needed to fuel him.

Due to the physical challenges of being in the water for such a long time, he will take all his meals as liquids, disposing of the need to chew as he swims.

Another big risk will be managing his skin as it reacts to long periods spent in the water.

"During my recent 48-hour swim, I essentially started to get trench foot, basically," he cheerfully told ITV News.

"The human body is not meant to be at sea for 100 days, it’s just not designed to do that."

Ross estimates that he will need to swim around 20-30 miles each day to meet his target end date.

His progress can be tracked on the Red Bull YouTube channel.

He will sleep twice a day on a support boat, when the tides turn against him.

Despite the challenges, he can't wait to wave goodbye to land for the last time in three months as he sets off on Friday.

He said: "I’m just raring to go."