Mall management usually is ambivalent about walkers. Not Memorial City Mall. They encourage indoor exercise. Mall walkers can gain access beginning at 5:30 a.m. each day. Throughout the mall, plaques mark a walking course at one-eighth-mile intervals. The mall co-sponsors the Health Check Walking Club with Memorial Hospital-Memorial City. Prizes are awarded for mileage goals from ten to 5,000 miles. A list of 72 people who have achieved the 5,000-mile goal is on display. At the mall's center (not hidden away in a second-floor corner) there's a giant kiosk where you can weigh yourself and pick up a wide range of fitness information. Why power-walk in 100-degree weather when you can do it in a clean, climate-controlled mall? Reward your good intentions by pigging out at Cinnabon, Taco Bell or one of the other places at the mall's huge fast-food court.