[1] Lake Paladru is located in the Isère département, in the region of the Miocene hills of Bas-Dauphiné called "Terres froides" and between the towns of Voiron and La Tour-du-Pin.

The lake contains 97 million m³ of water, and is located 492 metres above sea level.

The main beaches are located at the northern and southern ends, the shores on the side have a steeper gradient.

Rainfall is irregular, with most rain occurring in June and October with the rise of humid air masses from the Mediterranean.

There are two possibilities to explain the origin of the name: Between 1909 and 1913, the lake served as an experimental ground for prototype seaplanes built by Raymond de Montgolfier.