The river Thames has been there since pre-historic times so nobody knows.
The river Thames flows into the North Sea about 50 miles east of London.
The Thames estuary is at the end of the River Thames, in England.
In my opinion there is no end or the start of the any river or lake because if you look at any river or lake they don't have any end here is my example if we look at the Thames river in London we don't really know where it start from it might start from a water tunnel and if we look at the end of that we don,t know the end because river Thames goes in the some other directions . Any river , sea or lake don,t really have an end .
south end
That would be the River Thames.
The Thames does not end in Oxford. It carries on meandering westward as far as Cricklade, near Cirencester.
The River Thames is the major river through London, cutting right through the middle of the city. There are many other rivers in London, such as the River Lee (or Lea) and the River Brent.
The river Thames (pronounced temz)
London is situated on the River Thames (pronounced 'temz'.
Thames River
The Thames flows through London.