The Key Largo Bridge Run 10K/5K Run/Walk runs over the beautiful Jewfish Creek Bridge overlooking the Key Largo Bay. Challenge your best time in Key Largo's 9th Annual Key Largo Bridge Run. Run or walk our bridge on the 18 mile stretch, "The Gate Way To The Keys"! It's an awesome course, flat and fast with one big challenging bridge, Jewfish Creek Bridge, and gorgeous views of the Florida Bay and Barnes Sound.