John Colber is an athletic coach, mountain guide, and former competitive cyclist. John founded AdventX, an outdoor fitness training company, in 2003 and went on to receive Seattle Magazine's Best Outdoor Fitness Program, and KING-5 TV Best of Washington Personal Trainer Top 5 Award. Since that time he has personally trained more than 600 clients using the principles in Fit By Nature. Among his students are athletes who run anywhere from 5-kilometer to 100-mile races, compete in cycling and triathlon events, and summit major peaks; including Mount Everest.
