You should maintain your exercise program year-round. So it's best to choose a place where you can walk all the time. For outdoor walking, find a course with a smooth, soft surface that does not intersect with traffic. When weather prevents outdoor walking, walk around an indoor track at a school or recreation center. You may wish to purchase a tread mill for your home or office.
Many people walk around shopping centers.
Regardless of where you walk, be sure it is well lighted. It's important to walk in the right kind of shoes. Choose shoes with thick, flexible soles that cushion the some of the foot and absorb shock for the rest of the body. If you walk outside during the winter, layer your clothing to keep out the cold and wind. The best materials are cotton, fleece-lined cotton, wool or a breathable nylon.