A cliff is a steep face of rock and earth, often found at the edge of a mountain or along a coastline. Cliffs can vary in height and composition, with some made of solid rock while others may consist of loose soil or gravel. They are formed through processes like erosion and weathering, which shape the landscape over time. Cliffs are important habitats for various wildlife, including birds such as eagles and seabirds, which often nest on their ledges. They also attract hikers and climbers, providing opportunities for outdoor recreation. Additionally, cliffs can create stunning views and are often popular tourist destinations.