Facts

. The River Thames is Britain's second longest River
   stretching 346 km (215 miles) from source to Sea.
. The source is where the River starts in a village called
   Kemble.
. The estuary is where the River empties into the North
   Sea.
. Over 100 bridges cross the River Thames
. The deepest point of the river is over 32 feet
. Sea water comes up the River as far as Teddington in
   Middlesex
. The Thames has been frozen over at various times