A Water Taxi is a vessel which provides public transport, and it operates in a similar manner to a bus. It also offers sightseeing and commuter services. It is said that it has Britain origins, in the area of Manchester. It is funny that Water Taxis in New York has the same yellow colour as the iconic taxis. In United Stated this kind of taxis are called commuter boats. Different aspect but same aim, in Venice (Italy) there are Water Taxi service provided by Gondolas. This is one of the most common way to visit the touristic attractions that you couldn’t go by walking.
Watch this video to see the aspect of a Water Taxi in New York:
And this one from Venice: