What is a canyon?

A canyon is a deep and narrow gorge or ravine that is formed by the erosion of running water, typically a river or stream, over a long period of time. Canyons can vary in size, shape, and depth, and they are often characterized by steep sides or cliffs that are carved into striking rock formations. Canyons can be found all over the world and are often popular tourist destinations due to their natural beauty and geological significance. Some famous examples of canyons include the Grand Canyon in Arizona, USA, the Fish River Canyon in Namibia, and the Yangtze River Canyon in China.