A water taxi or a water bus is a boat used to provide public or private transport, usually, but not always, in an urban environment.[1] Service may be scheduled with multiple stops, operating in a similar manner to a bus, or on demand to many locations, operating in a similar manner to a taxi. A boat service shuttling between two points would normally be described as a ferry rather than a water bus or taxi.
The term water taxi is usually confined to a boat operating on demand, and water bus to a boat operating on a schedule. In North American usage, the terms are roughly synonymous.
The earliest water taxi service was recorded as operating around the area that became Manchester, England.[citation needed]