Narrow passages are confined spaces that limit movement and access, often found in natural landscapes or human-made structures. These can include tight corridors, small openings between rocks, or narrow streets in urban areas. They can serve various purposes, such as providing access to different locations or creating unique geological formations. In nature, narrow passages can be formed by erosion, where water or wind gradually wears away rock, creating tight spaces. In architecture, they may be designed for aesthetic appeal or to maximize space in crowded environments. Examples include caves, alleys, and gorges, each offering distinct experiences and challenges.