5. Jessica Biel
Mrs. Timberlake isn’t your average weekend hiker—in 2010 she climbed Mt. Kilimanjaro (the tallest peak in Africa) on behalf of a United Nations effort to raise awareness for the global water catastrophe. “I have lots of things in the dream pipeline for adventures in the future. I’ve said this before, but one would be getting Everest base camp and trekking there,” Biel told US Weekly after her first climb. “It’s a 10-day trek up and down.”
