Runners won’t be bored. Sign up for the 7 Mile Bridge Run, the only known race that is completely surrounded by water from start to finish. Start training for the South Beach Marathon in March 2017 now. Look at the Down2Earth calendar filled with short, long, challenging and fun runs, and take your pick. Sign up for the Dopey Challenge, a 5K, 10K, half marathon and full marathon all over the course of four consecutive days through Disney World.