In the Tiber river (Fiume Tevere) there is a 9km long catch and release tailwater area exclusively dedicated to fly fishing, which runs in the province of Arezzo. This stretch of river is the southernmost spot in Europe where graylings reproduce naturally. Typical of this fishing path are spots with constant temperature and water levels (6 ° for 3 m3 / s). Fly hatches which allow dry fly fishing even at high external temperatures are abundant and consistent, and the opportunity to catch large fish even in the central hours of mid summer days is possible the fishing season lasts from 1 May to 31 December.