Sometime after 6am on Sunday, September 7, Amanda Randall and her partner John Edwards will reach the point of no return.

They will be ordered to take their clothes off and leap into toe-numbingly cold water.

Along with more than 100 heroic swimmers they will take part in an unforgettable endurance swimming experience – the Windermere One Way Wild Swim – which will test their stamina to its limits.

It’s 10 miles long, involves at least seven hours swimming and is the energy equivalent to running two marathons.

Because it is so potentially risky they are not allowed to swim alone. Their canoeist support teams are Lizzy Randall and Gary Keogh supporting Amanda, and Steven Randall and James Noonan supporting John.

Windermere is the largest natural lake in England and has a depth of 219 feet in places. At its widest point, it is just less than a mile across.

Amanda, a keen swimmer, has been planning this, her furthest swim for over a year while John, who hadn’t swum seriously for 25 years until taking part in a major swim series in 2012.

Amanda is a 39-year-old director of a Slaithwaite business while her partner, John, 44, is a computer architect in Marsden.

They have three fully grown, and two young children respectively.

John became a keen open water swimmer three years ago following Amanda’s lead in the British Gas Great swim series.

The couple said: “This is the longest single swim and most significant endurance event we have each attempted.

“We have been training three or four times a week in the pool and outdoors with steadily increasing distances.

“We chose Huddersfield’s Forget Me Not Children’s Hospice because we both have children and we’ve been lucky enough not to need their services.”

Here is the link to the charity appeal page -