Rebecca Adlington has told celebs thinking of joining The Jump next year to be prepared.
Channel 4 confirmed earlier this month that the ski-jumping reality competition series would be back for a fourth run in 2017.
The Jump has aired for a total of three seasons so far but has earned itself a reputation for leaving its celebrity contestants in need of hospital treatment.
This year saw Beth Tweddle suffer the show's most serious injury to date, airlifted to hospital after hurting her back.
Alongside Beth, others who had to quit the show included Mark-Francis Vandelli who fractured his ankle, Tina Hobley who dislocated her elbow and broke her arm and Sarah Harding who injured her knee.
Olympic swimmer Rebecca Adlington was also forced out after dislocating her shoulder, but previously defended the show: "My injury is something that could have happened on a skiing holiday, dislocating your shoulder. And I could have done it anyway.
"Same with other people - they were just accidents."
In a interview this week with The Sun, Rebecca warned those thinking of signing up next year to know what they're getting into.
She said: "It’s exciting but my advice is to definitely take some lessons.
“I was a total beginner and I wish I’d done more ski lessons or had a ski holiday to make myself better.”
Rebecca was speaking as an ambassador for Kellogg’s Great Starts campaign, which yesterday unveiled a giant sculpture of the two-time Olympic gold medallist in Hyde Park ahead of the Rio Olympics.
Rebecca said: “As an Olympic athlete, I know how amazing it feels having the whole country behind you and I hope all of Britain will be cheering on our athletes in the coming weeks. Seeing the unveiling of such an impressive sculpture certainly should inspire Team GB ahead of the Olympic Games in Rio.”
The Jump will air on Channel 4 in the New Year.