If a huge earthquake or disaster hit Tokyo, many people would probably have to walk home.

To better prepare Tokyoites for such a crisis, the Japanese Red Cross Society Tokyo conducted a return-home "training event" Saturday that gave participants a chance to find their way back home on foot.

According to a 2006 estimate by the Tokyo Metropolitan Government, about 3.9 million people would have a difficult time getting home if a major earthquake struck Tokyo in the early evening on a weekday.