The
Aura (
Finnish Aurajoki;
Swedish Aura å) is a
river in south-western
Finland. Its sources are in the town of
Oripää, and it flows through
Pöytyä,
Aura and
Lieto before discharging into the
Archipelago Sea in the middle of the city of
Turku. The waters of the Aura river are brown. The total length of the river is about , and it contains eleven
rapids, the biggest of which is Nautelankoski at Lieto. The reserve
tap water for Turku Region is drawn from the Aura, the city's secondary waterworks being situated by the Halinen rapids.