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The Étang de Saint-Quentin, or pond of Trappes, with a surface of approximately 2.5 km², is the largest body of fresh water in Yvelines. It on in the perimeter of the new town of Saint-Quentin-in-Yvelines, in the commune of Trappes and Montigny-le-Bretonneux. The lake an important base of outdoor recreation.

The Institut Culturel Franco-Japonais – École Japonaise de Paris ("French-Japanese Cultural Institute - Japanese School of Paris" - Japanese: 日仏文化学院パリ日本人学校 Nichifutsu Bunka Gakuin Pari Nihonjin Gakkō) is a Japanese international school located in Montigny-le-Bretonneux, France, in the Paris Metropolitan Area.

The National Vélodrome de Saint-Quentin-en-Yvelines is a velodrome in Montigny-le-Bretonneux, France. It was built between 2011 and 2014 and hosted the 2015 UCI Track Cycling World Championships and 2016 UEC European Track Championships. It will host the cycling venue in the 2024 Summer Olympics.Next to the velodrome is also a BMX stadium.