I can imagine, for longer distances, this kind of malarkey could get extremely tiresome. With Boris d*cking about with mythical cable car routes over the Thames and an entirely practical Jermyn Street Venetian-style waterway, commuters have little reason to look to the river for hope. Fun - yes (the Hampton Court Flower Show) is putting on an authentic Thai floating market this year, whilst September's Thames Festival promises more waterside frolicks). Tradition - yes (join swan upping this year and help the swan marker count the city's cygnets). But basic transport needs - not so much.

A free, and rather fabulous alternative, however, is 'Perfect Commute Home' which offers a luxury river boat service for tired travellers with on-board barbeque, beer garden, and below deck toys including a putting green and Nintendo Wiis, as well as massages and grooming sessions. Beat that Boris.