- Who
- Unknown
- What
- 25 metre(s)
- Where
- Frankreich (St Nazaire )
- When
The largest plastic duck measured 25 m (82 ft) tall and was floated at the port of Saint-Nazaire, France, as part of the Loire Estuary Project 2007 which involved a series of art installations along the river bank between Saint-Nazaire and Nantes from June to 1 September 2007.