When your children are adults, they won't always be able to find a way to play hockey or basketball, but they can always walk, jog, swim, or bicycle. Set up a volleyball net or basketball hoop. Rake up a pile of leaves for jumping in. If you live in a safe neighborhood, simple outdoor activities, such as walking, Rollerblading, and bicycling are possible most of the year. And when it snows, build a snowman and throw snowballs.
Some families enjoy following exercise videos together.