Originally, Cañadas wanted to pursue a career as a criminologist, but her mother persuaded her to give modeling a try.
Cañadas signed her first contract with the Take 2 Agency after winning a local competition for a teen magazine. She represented her country in a model search and was sent to South Africa. She then moved to Barcelona on her own to begin working.
Cañadas has walked the catwalk for many designers, including Gucci, Dolce & Gabbana, Versace, Chanel, Michael Kors, Calvin Klein, Alexander McQueen, Yves Saint Laurent, Valentino, Moschino, and Givenchy.