Image of an outdoor swimming pool

Quick answer：

An outdoor swimming pool is a pool that is situated in an open space, often in a garden or park. These pools are designed to provide a natural environment for swimming and are typically not enclosed by buildings. Outdoor swimming pools can come in various sizes and styles, from small backyard pools to large community or public pools. They often feature sunbathing areas, landscaping, and sometimes water features like waterfalls or fountains. Maintenance of outdoor pools may differ from indoor pools due to environmental factors such as temperature and weather conditions.