[3] When the city fortifications were abolished, the then called Bauschänzli bastion remained intact, and served from 1835 to 1883 as the landing site for the first steamboats on the lake, later provided by the Zürichsee-Schifffahrtsgesellschaft.

[4] Over the years, various other companies started operating steam ships on the lake, and various mergers took place, until the entire fleet was taken over by the Swiss Northeastern Railway (NOB) in 1874.

The NOB also owned most of the railway network around the lake, and this monopoly led to consumer resistance, and to the formation of the Zürcher Dampfbootgesellschaft (lit.

[3] For the Swiss National Exhibition of 1939 [de], four sister motor ships named after water birds, the Taucherli (Eurasian coot), Schwan (Swan), Möve (gull) and Ente (duck), were brought into service.

[3] In 1990, the ZSG became part of the Zürcher Verkehrsverbund (ZVV), the public transport network established in the same year, accepting the ZVVs common tickets and tariffs.

Of the four so-called Landi-Boote built for the Swiss national exposition (Landi) of 1939, Ente was sold to the BLS after the exhibition, whilst Schwan (renamed Halbinsel Au), Möve and Taucherli (renamed Speer) continued in service until the end of the 1990s, when they were replaced by three motor ships (300 passengers each) of the Albis type – Albis, Pfannenstiel and Uetliberg – in addition to two smaller (150 passengers each) motor ships – Zimmerberg and Forch.

A few trips continue through the Hurden ship canal to the upper lake, or Obersee, calling at Altendorf, Lachen and Schmerikon, and take 7 hours.