11.   In conclusion, walking is a cheap, safe, enjoyable and readily available form of exercise.

12.   Walking is the latest fitness craze.

13.   Walking is one form of locomotion.

14.   It was so wet and cold that they might have been walking in the sea, but she did not seem to notice.

15.   He says that walking is easier when his two friends help him.

16.   Although walking its paths is still a pleasure, to be sure, the garden strives to get visitors involved.

17.   Among those said to have walked out was Henry Cagey, chairman of the Lummi Nation in Washington state.

18.   And since walking is by far the best way to get to know a city, ergo ...

19.   And we know for many people, walking is the only exercise they can do.

20.   And, remember, walking is free.