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The Lee Navigation is a canalised river incorporating the River Lea (River Lee). It runs from Hertford Castle Weir to the River Thames at Bow Creek; its first lock is Hertford Lock and its last Bow Locks.
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National Route 1 of the National Cycle Network is a long distance cycle route connecting Dover and the Shetland Islands mainly via the east coast of England and Scotland. The route is all signed and open except between London and Woodbridge (in Suffolk) and between Whitby and Staithes (in Yorkshire).