You don’t need any special skills to climb a big, glaciated mountain, like Mount Rainier, with a guiding service. You just need to show up in the best hiking shape of your life. This six-month plan, designed by Doug Schurman—co-author of The Outdoor Athlete and co-owner of bodyresults.com, a wilderness-sports-conditioning service—incorporates home-gym-friendly strength and endurance exercises to gradually build your fitness toward a no-sweat summit day. You'll dramatically improve you hiking endurance for steep terrain, as well as your lower body and core strength to prepare you to carry a heavy pack. This plan was tailor-made for climbers of Mt. Rainier, but is also ideal for anyone planning on a big mountain climb or long-distance backpacking trip.