Walk along the Thiou river
The Thiou is a short river (3.5 km) that flows from Lake Annecy to the Fier, which is itself a tributary of the Rhône. Starting from the Old Town of Annecy, built in the middle of canals formed by the Thiou, there is a series of paths along the river that go all the way to Cran-Gévrier, slightly before it joins with the Fier.