"See the city from a different angle: Choose from a sightseeing cruise of your chosen stretch of the river (we like Thames Limo, which leaves from Fulham), enjoy tea on the Thames, or simply use the regular boat service as an alternative to the Tube. Single fares range from just under £4 to £13, depending on how far you want to go. For around £15, you can get a River Roamer ticket that entitles you to unlimited travel to all of London's fifteen piers. "
The West & Southwest London Guide
