She's conquered the desert, and now adventure fanatic Hollie Woodhouse is ready to take on the jungle.
The Cantabrian, who balances a rigorous training regime with a full-time job and running a charity, will run through 230km of the Amazon in June in her second ultramarathon.
All proceeds will go to her charity called Running for Rangers, which raises money for the staff who look after endangered species hunted for their ivory in Kenya.
In April, Ms Woodhouse was part of a team of five who ran the Marathon des Sables, a gruelling race through the Sahara, in Morocco.
She spent nights sleeping on a small strip of carpet, watching her feet turn into something that resembled sausage meat and going to the toilet in a bag. And yet she said it was enjoyable.