Nasva (stream)

The Nasva is river in Estonia in Saare County. The river is 3 kilometres long. It runs from Mullutu-Suurlaht into Suur Katel in the Baltic Sea. The river is unique because its water flows in two directions. During the floods in spring, the water flows from the sea into the bay, the opposite of the usual direction of flow.^[1]

Nasva
Location
Country	Estonia
Physical characteristics
Source
• location	Mullutu-Suurlaht
Mouth
• location	Suur Katel, Gulf of Riga
Length	3 km (1.9 mi)
Basin size	306 km2 (118 sq mi)