A good way to pass the time and lose weight.

http://www.nytimes.com/2015/06/06/us/a-race-to-alaska-no-motors-but-no-limits-on-imagination.html?&moduleDetail=section-news-1&action=click&contentCollection=Science&region=Footer&module=MoreInSection&version=WhatsNext&contentID=WhatsNext&configSection=article&isLoggedIn=false&pgtype=article