You see them in neighborhoods, on school grounds and in city parks – people walking who aren’t really headed anywhere; just walking for the exercise.Walking is found to be safer, more convenient and less likely to result in injuries than many other forms of exercise.It also happens to be free.Married couple Shalane and Dean Grassie try to walk about two miles a day. They strolled early Friday night after supper at Forres Park.Dean once ran marathons but he stopped when, as he got older, it got too hard on the knees to continue running.“We’re trying to get back into the ...