Dean Karnazes, Mike Horn, and Samantha Davies Photo: Alex Tehrani, Sebastian Devenish, Jean-Marie Liot
What inspires an adventurous mind? You'd be surprised. Here are bold confessions from 15 Outside eminences, from alpinists and ultrarunners to a thrill-seeking news anchor.
Want to get Outside more?
Sign up for our newsletter and get the latest fitness tips, expert gear reviews, the best travel advice, and more.