We took the Big Bus tour (hop on/hop off) which included a free Thames Cruise from the Tower down to Big Ben, and a free walking tour. It was well worth it. http://www.bigbus.co.uk/ ((b))

www.TheOriginalTour.com includes a <i>round-trip</i> cruise from Westminster to Tower Bridge, or one-way to Greenwich.

But I think ho/ho bus tours are a rip-off anyway.

Robespierre, I was definitely not leaning toward the ho/ho tours from what I have read. A one way trip on the river from one destination to another sounds more reasonable. thereyet