The Arnault River is the mother river of Florence and is an important river in Tuscany, Italy. Apart from the Tiber River, the Arnault River is the most important river in central Italy. Florence and Pisa are located on the banks of the Arnault River. The river passes through the city, adding a soft temperament to the city. There are swimmers in the river, more rowing, competitive paddleboarding, and it is very interesting to watch.