Set between Valmur and Vaudésir, in the central part of the Grand Cru area, this is the smallest of the seven vineyards. Its slope has a rounded shape to it, becoming less steep at the top end. At the bottom edge it follows the course of the river Serein, home to many frogs, which have given the climat its name.
The wines tend to be softer and more open in their youth than those from the other plots. They can also vary considerable with age, sometimes showing power, and sometimes delicacy. In a way, the wines of Grenouilles can be seen as a synthesis of the other climats.