Photo:
©
Kake
Historical version 6 of Thames Clippers (view current version)
Thames Clippers are a waterbus company who run both commuter and tourist services up and down the river Thames.
As well as single-journey tickets, they also offer season tickets, and the River Roamer ticket, which allows one day's unlimited hop-on hop-off travel between all piers. (Note that as of April 2008, their website is ambiguous on the validity of the River Roamer ticket; however, the preceding was confirmed by Kake via an email exchange with Thames Clippers, 28 January 2008.)
Holders of valid Travelcards are given a discount on the regular fares (I don't think this applies to River Roamer).
See also: