Join Mayor Karl Dean for the 4th annual Mayor's Challenge 5K, a free 3.1 mile walk/run in Downtown Nashville on Sunday, November 9! All activities begin at Public Square Park outside the Metro Courthouse. Activities begin at 12 p.m. (noon). The Kids' Fun Run will start at 2 p.m. and the 5K begins at 2:15 p.m. Participation is completely free, and individuals of all ages and fitness levels are encouraged to join. The Kids' Fun Run is for children age 12 and under.