The Geratser Wasserfall is a striking waterfall in the Kranzegger Bach. It is located south of Kempten and north of Sonthofen in the municipality of Rettenberg. The Kranzegger Bach flows through a green meadow landscape before dropping six meters from a wall in a small wooded area.

The waterfall got its name from the hamlet of Gerats, where it is located. As the waterfall is so hidden in the forest and at the same time a few kilometers away from well known villages, this natural wonder does not attract many visitors.