"My stomach turned and I don't even know you!" said Melissa from Philadelphia who was with her husband, John, and her family after I stepped on the edge of the Grand Canyon and lifted my bike up. Absolutely an incredible experience visiting the Grand Canyon for the first time today! Next big stop is LOS ANGELES!!!More pictures coming soon. Spartan biking 6,500 miles to raise money for teen heart screenings! Half way done!! #BikeForTommysHeart #bikeacrossamerica