Complex sentence: In cooperation with the Canton of Zurich, the municipalities of Oberengstringen and Zürich, that section of the river was renewed, and the access to the Limmat and the hiking path towards the Fahr Abbey, the area was widened for pedestrians and cyclists.
Split into simpler sentences: In cooperation with the Canton of Zurich and the municipalities of Oberengstringen and Zürich, that section of the river was renewed. The access to the Limmat and the hiking path towards the Fahr Abbey was improved and the area was widened for pedestrians and cyclists.