Richard Seven wrote Walking Toward Well-being: America’s Favorite Exercise in The Seattle Times. It’s fun, easy and inexpensive! An hour of walking outdoors with the grandkids counts as an hour of outside activity for Go Play Outside!!
Richard’s article had a link to find a walkers group if you’re interested joining one — or starting your own — see http://walkers.meetup.com. You can enter your own zipcode to find groups near you – or see a list of people interested in joining one if you would start it! There are all kinds of interesting groups: for example, a Tacoma walking-with-dogs group, or a collaboration of Redmond/Kirkland moms-with-strollers.