Riding on a boat is boring, so to keep the passengers entertained (and spread the wealth) the cruise lines have several stops along the river. Our first stop was at Fengdu. During the Han dynasty (206BC - 220AD) two officials converted to Toaism and eventually were added to the ranks of the Immortals. The characters of their names, when combined, mean King of the Underworld. After that, all it takes is some marketing.