Without the Thames, there would be no London. Simple as that.
But the river is much more than a water source. The Thames is the city's lifeblood, bringing it prosperity, security... and deadly disease. Over the centuries it has acted as a motorway, a burial ground, a frozen playground, and the setting for some of London's finest buildings.
The guided walk will begin outside the City Information Centre (opposite St. Paul's Cathedral), and take to see some of the best river buildings nearby. You'll look at the re-constructed Globe Theatre (a replica of Shakespeare's Elizabethan playhouse), the re-purposed Tate Modern (an old power station on Bankside), and Norman Foster's Millennium Bridge (where young couples snap padlocks to signify their love).
If you like the sound of this river walk, then how about something even better... an open-top boat from Big Ben to Greenwich? There are two boat companies that Craig recommends: City Cruises and TRS (Thames River Services). You can read Craig's review of City Cruises and his TRS review on his blog before you go (TRS is slightly better, because the boats are usually a lot less busy).
You might like to try our self-guided walk along the Southbank as well. It starts off in Parliament Square, goes across Westminster Bridge, and then two hours later you'll be crossing over the centre of Tower Bridge.
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