Possible Clues:

• River on which the nineteen hundred Olympic rowing events were staged
• Look around in the river
• River through Rouen
• You can see it from the Eiffel Tower
• River along the Quai d'Orsay
• River near 18-Across
• It runs through Paris
• Repeated setting for Georges Seurat paintings
• River that runs near the Louvre
• One making bank in Paris?