Gather your family and friends for this cherished Northern Valley running celebration in Demarest, NJ, where runners of all levels come together for a day of community fun. Local elementary students (K-8) get a head start through the Principal's Challenge, a weekly school-based training program designed to build their fitness and endurance before joining everyone in the main 5K race. Once the 5K finishes, stick around for a complimentary Fun Run that keeps the festivities going for the whole crowd!