The Fall Series is a series of four races in four different city and county parks. The courses are run on trails that range from well-maintained to very rocky with exposed tree roots. And if there is water in the park, you will get wet. The emphasis is on cross country running, using the trails and obstacles that are offered at each race venue. The courses are challenging, and sometimes a bit crazy, but the atmosphere is filled with smiles and fun. By design, these are not your ordinary 5K or 10K races.