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| Locale | Manhattan, New York |
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| Waterway | East River, Harlem River, Harlem River Ship Canal, Hudson River, New York Harbor, Spuyten Duyvil Creek, Upper New York Bay |
| Transit type | Water Tours |
| Operator | Circle Line Sightseeing Cruises |
| Began operation | 1945 |
Circle Line Sightseeing Cruises is a boat-based sightseeing and entertainment company in Manhattan, New York. Its principal business is operating guided tours of New York City from its base at Pier 83 in the Hell's Kitchen neighborhood.