Experience the Grand Canyon like never before. This bestselling 14 week plan is built specifically for an athlete targeting the Grand Canyon Rim to Rim to Rim (R2R2R) run. This plan includes core/bodyweight strength exercises. This plan assumes an athlete with experience in endurance trail running, which should include recent experience in completing a marathon or 50k. This plan starts with a 10 mile long run and builds in to a 25 mile peak long run. This plan trains for 6 days per week with Wednesday as the scheduled rest day. Core and bodyweight strength exercises are included in 2-3 days/week. The goal of this plan is to prepare an athlete to attempt the route under general effort. This plan is not meant to be used for speed/PR R2R2R attempts.