Sárvíz (Sió)

The Sárvíz (Sió) is a canalized river and sluice system in Hungary, primarily functioning as an outflow channel for Lake Balaton. It connects Lake Balaton, the largest lake in Central Europe, to the Danube River. The name Sárvíz translates to "muddy water" in Hungarian.

Historically, the area surrounding Lake Balaton and the Sárvíz was prone to flooding. The construction of the Sió canal, along with sluices and other water management infrastructure, aimed to regulate the water level of Lake Balaton and mitigate flood risks downstream. This regulation is crucial for balancing the lake's ecosystem, tourism, and agricultural needs.

The Sió canal flows generally eastward from Siófok on the eastern shore of Lake Balaton, eventually joining the Danube River near Paks. Its course passes through agricultural lands and various settlements, impacting both the environment and the local economies along its path. The water flow in the Sió is carefully managed to ensure sufficient water for downstream users, while also preventing excessive drainage of Lake Balaton. The management of the Sárvíz (Sió) is an ongoing challenge, balancing competing demands and considering the long-term ecological health of the region.