Open water refers to expansive, natural bodies of water such as oceans, seas, lakes, and rivers that are not confined by man-made structures like swimming pools. Swimming in open water offers a unique and exhilarating experience compared to swimming in a pool, largely due to the natural elements involved, such as waves, currents, and variable water temperatures.

These environments provide a sense of freedom and connection with nature but also require careful preparation and safety measures. Swimmers need to be aware of potential hazards such as strong currents, cold water, and marine life. Open water swimming can be a thrilling adventure and a great way to enhance physical fitness while enjoying the beauty of the natural world.