All in aid of Sport Relief, Davina started at Edinburgh Castle and had to do a punishing 130 mile cycle against gale force winds, before a second day knee-deep in snow on Scafell Pike.
The eventful third day is the one that got us all talking when she swam Lake Windermere and, having only just succeeded, was carried ashore. We'll watch as Davina's medical team put her back together to continue cycling 60 miles just one hour after the drama!
Fighting against extreme fatigue, freezing temperatures and her own emotions, she finishes off the week by running a full marathon to reach the Tate Modern in London. She's one gutsy gal and we salute her.
Davina: Beyond Breaking Point, BBC1, 9pm
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