The idea is to walk at least 1 mile a day for 21 days. The thought is that anything done for 21 days in a row becomes a habit.
This is the challenge that sparked Pops in the beginning. He then sparked me. At first I could only do 1/2 mile a day, some days only a quarter mile. Now I am averaging 2-2.5 every day.
Our personal goals is to walk at least 2 miles in each of the 48 continuous states.
We have done 34 so far.