3. Cara Delevingne in Sardinia Mountains

Actress, supermodel and social-media influencer Cara Delevingne realizes a long-held dream of accompanying Bear Grylls on an adventure. Sweeping Cara off her scooter and onto a helicopter, Bear leads Cara up the mountains of Sardinia. At nearly a mile high in elevation, Bear shows Cara how to brave several heart-stopping obstacles including pulling herself across a horizontal line suspended 200 feet in the air and rappelling down a dangerous waterfall.