Yesterday was the first day of spring and the first day of the 100 by Summer Dog Walking Challenge. The idea is that between the 1st day of spring and the 1st day of summer you and your dog(s) walk 100 miles. This is the 4th annual challenge but the first one that we participating in. Day 1 finished and we logged 6.5km. There are still a few days left if you want to sign up.