Hollywood News Now: I'm a Celebrity's Louise Minchin on biggest challenge from new project

I'm a Celebrity's Louise Minchin on new project David M. Benett - Getty Images

I'm a Celebrity...Get Me Out of Here! star Louise Minchin has revealed the biggest challenge she faced when working on her new project.

Appearing on The One Show this week to talk about her new book Fearless: Adventures with Extraordinary Women, Minchin told hosts Alex Jones and Roman Kemp about the many challenges she faced along the way.

In the book, Minchin takes on a number of sports challenges with "incredible women", which included freediving under ice and swimming to San Francisco's Alcatraz island.

According to Minchin, one of the scariest and most extreme challenges she faced was a cave diving expedition she undertook with explorer Christine Grosart as her guide.

"It even makes me feel nervous thinking about it n ow," she said as a picture of her and Grosart flashed on the screen. "This is just after I'd got out of the caving, I'd been four hours in the dark with this amazing woman Christine Grosart who's a paramedic and also a cave explorer and there is not enough money in the world to pay me to go back in."

Speaking about the frightening experience, Minchin said she thought the pair would be going into a beautiful and well-lit cave, but the expedition was actually a dark and claustrophobic nightmare.

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"I thought we'd sort of go into a beautiful cave and it would be well lit and we'd wander around and there'd be stalagmites and stalactites," said Minchin. "We literally arrived, there was a hole in the ground, it was tiny, I had to squeeze through and keep on squeezing through for the next four hours. And for me, I'm really claustrophobic and I found it really, really hard."

Minchin's book is available to purchase in hardcover, Kindle and audiobook now.