The Thames Path route will return to the riverside at Bankside next Monday 5 December.
From early morning it will be possible to walk from in front of Tate Modern to Oxo Tower Wharf without leaving the waterside.
Thameslink railworks have for some time forced walkers to go inland into Southwark Street.
The new access to Blackfriars Station from the south bank opens on the same day.
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