Walkers are finding notices upstream of Windsor about diversions caused by the Olympic Games.
This is due to the proximity of the Olympic rowing course.
Until the end of November there is a diversion between Boveney Church and the turning to Dorney Court.
The present diversion along the north side of the rowing course is required because a temporary bridge is being built from Windsor Racecourse.
However, during the Olympic period there will be an even longer diversion yet to be announced.
After the Olympics the towpath will remain closed whilst the bridge is dismantled but the shorter diversion will come back into operation.