problem Hideaki Akaiwa was at work when the dual threats of earthquake and tsunami rocked Japan. He went home to find his neighborhood was under ten feet of water, his wife and mother nowhere to be found.
solution Akaiwa strapped on scuba gear and swam some 200 yards through debris (his estimate) to his house, where he found his wife. He found his mother that way, too, in the 2nd floor of another home. source