"They both need to forget about their F1 lifestyle," said team trainer Gerard Gray.
Ahead of Sunday's Montreal race, the pair are embarking on a rigorous six hours a day programme of hiking and biking at picturesque Lake Sacacomie.
Gray added: "It's a terrific place to escape the F1 bandwagon and get back to basics of training and eating right -- and the presence of bears should focus their minds!"
- GMM