Check out our video, which highlights some of the treks explored in “Ultimate Adventures: A Rough Guide to Adventure Travel,” compiled by experienced tour leader and trekker extraordinaire, Greg Witt.

Whether your appetite for adrenalin takes you to arctic freezes, ocean depths or sweltering deserts, “Ultimate Adventures” will tell you the how, why and when to plan your ultimate adventure. The guide is packed with maps & safety advice and includes information on all the best local guides. Make the most of your time on Earth with this spectacular foray into world adventures.