One can't truly train for the rigorous challenges the Pacific Crest Trail brings, but staying in shape and pushing yourself beforehand is key. Rob and I went on a 45 mile bike ride with a riding time of 3 hours and 59 minutes. This is nothing compared to the daily life on the PCT, where some days I will hike 45 miles with my home strapped to my back. Most days will be more like 25-30 miles, but that is still a marathon per day. The human body is capable of amazing feats!