A Witney teenager is set to run the width of Southern England for charity.

Archie Rendell, a 19-year old meteorology student at the University of Reading, will set off on his 261km journey on June 13.

The challenge, starting from the Bristol channel at Portishead and ending at the Thames Barrier in London, is aimed at raising funds for WaterAid.

For the majority of the route, Mr Rendell will travel alongside waterways, including the River Avon, Kennet and Avon canal, and finally along the River Thames.

He said WaterAid "seemed a very appropriate charity to raise money for" because of the route, adding "it is a charity I am passionate about".

He said: "Clean water is something many of us take for granted, but for millions less fortunate than us it's not as simple as turning on a tap.

"I have taken up running this year and I am really enjoying it. I love setting myself challenges which is why I decided to do this long run for charity."

He has set up a Just Giving page and has raised £622 so far.

He is aiming to complete the run within three to four days.

Before going to university, Mr Rendell attended The Batt Primary School and The Henry Box School, both in Witney.

He described himself as a a "keen hiker", having completed several of the UK National Trails.