Zero units. The Seine runs through the middle of Paris.
Paris, France is located on the banks of the world famous River Seine. Its banks are a World Heritage site.
Paris is located on the banks of the River Seine
the river going through Paris is the Seine river.
So far as I know, it's actually illegal to swim in the Seine.
The river crossing the center of Paris is the Seine.
The River Seine
The River Seine runs through Paris, France.
The Eiffel tower is located IN Paris, on the right bank of the Seine river.
The river that separates them is the Seine River.
The Seine River flows through Paris and Rouen
The Seine River is the river that Paris stands on
Paris is probably the most notable city on the Seine.