Flysch cliffs are geological formations characterized by alternating layers of hard and soft rock, typically found along coastlines. These layers are formed from sedimentary deposits that have been compressed and tilted over millions of years. The hard rock layers, often made of sandstone or limestone, resist erosion better than the softer layers, leading to the distinctive stepped appearance of the cliffs. These cliffs are commonly associated with regions like the Pyrenees and Basque Country in Spain and France. Flysch formations provide valuable insights into Earth's geological history and are often studied by geologists to understand past environments and sedimentation processes.