Waterfall is a city located in Ireland. While the provided source material defines the geographical phenomenon of a waterfall as water flowing over a vertical drop or steep series of drops, it does not provide specific details regarding the city's history, population, or landmarks.
The term "waterfall" generally refers to points where rivers, streams, or meltwater from icebergs and ice shelves fall over edges. These formations typically occur when a river flows over resistant bedrock onto softer rock, which erodes more quickly to create an increasingly high drop. Scientists study these features to understand their impact on surrounding species.