This chapter provides a background of the waterborne evacuation that happened after the events of 9/11. New York harbor was, and is, a busy place — the third largest container port in the United States and a vital connection between New York City and the rest of the world. Manhattan is an island, and the realities of island real estate are what ushered the port's industries off Manhattan's shores and over to Brooklyn, Staten Island, and New Jersey in the 1960s and 1970s. By late 2001, maritime infrastructure had been replaced with ornamental fencing. On September 11, 2001, as the cascade of catastrophe unfolded, people found their fates altered by the absence of that infrastructure and discovered themselves dependent upon the creative problem solving of New York harbor's maritime community — waterfront workers who had been thrust beyond their usual occupations and into the role of first responders. Long before the U.S. Coast Guard's call for “all available boats” crackled out over marine radios, scores of ferries, tugs, dinner boats, sailing yachts, and other vessels had begun converging along Manhattan's shores. Hundreds of mariners shared their skills and equipment to conduct a massive, unplanned rescue. Within hours, nearly half a million people had been delivered from Manhattan by boat.