Wda

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Wda
Location
Country	Poland
Physical characteristics
Mouth
• location	Vistula
• coordinates	53°24′42″N 18°28′45″E / 53.4117°N 18.4792°E / 53.4117; 18.4792
Length	198 km (123 mi)
Basin size	2,325 km2 (898 sq mi)
Discharge
• average	6.52 m3/s (230 cu ft/s)
Basin features
Progression	Vistula→ Baltic Sea

The Wda (German: Schwarzwasser) is a river in Poland; it has a lowland character. The Wda is one of the 15 main canoe trails in Poland. It is 198 km long and the surface of its catchment area amounts to 2325 km². The Wda's average gradient is 0.7‰ and its flow is 6.52 m³/s.

The Wda begins its course at Krążno Lake and ends in the Wisła in Świecie. The Wda is one of the longest rivers in Bory Tucholskie and one of the most important of Pomorze's river routes.