A waterfall is any point in a river or stream where water flows over a vertical drop or a series of steep drops. Waterfalls also occur where meltwater drops over the edge of a tabular iceberg or ice shelf.
A waterfall may also be termed a falls or sometimes a cataract, the latter designation being most common when large volumes of water are involved. Waterfalls of small height and lesser steepness are called cascades; this term is often applied to a series of small falls along a river.
The sight of tons of water spilling over the edge of a cliff or cascading over rocks never fails to impress. While the grandest falls deserve a prominent place on any bucket list, a waterfall doesn’t have to be the tallest, widest or most voluminous to make it a worthwhile travel destination.