
A swimming pool, swimming bath, wading pool, paddling pool, or simply pool is a structure designed to hold water to enable swimming or other leisure activities. Pools can be built into the ground or built above ground, and may be found as a feature aboard ocean-liners and cruise ships. In-ground pools are most commonly constructed from materials such as concrete, natural stone, metal, plastic, or fiberglass, and can be of a custom size and shape or built to a standardized size, the largest of which is the Olympic-size swimming pool.

An Olympic-size swimming pool conforms to regulated dimensions that are large enough for international competition. This type of swimming pool is used in the Olympic Games, where the race course is 50 metres (164.0 ft) in length, typically referred to as "long course", distinguishing it from "short course" which applies to competitions in pools that are 25 metres (82.0 ft) in length. If touch panels are used in competition, then the distance between touch panels should be either 25 or 50 metres to qualify for FINA recognition. This means that Olympic pools are generally oversized, to accommodate touch panels used in competition.

Aquis Submersus is a painting by the German dadaist and surrealist Max Ernst created in 1919. Influenced by the Italian metaphysical art it is one of Ernst's earliest works showing surrealistic accents. It currently resides at the Städel Museum in Frankfurt, Germany.

The Azure Swimming Pool is one of the indoor swimming pools in the abandoned city of Pripyat, Ukraine, which was affected by the 1986 Chernobyl nuclear disaster.

Cleo Baldon was an American architect, landscape architect, and furniture designer based in Los Angeles, where she contributed to many well-known structures, especially pools. She worked as the design director of Galper-Baldon Associates, headquartered in Venice, California. Baldon is credited with having a profound effect on the California furniture industry with her outdoor furniture designs.

Cabana or Cabaña may refer to either an "indigenous hut" or a "recreational structure".

Cook and Phillip Park Aquatic and Fitness Centre is a recreational facility in the Central Business District of Sydney.

Deepspot is a swimming pool and Scuba diving training center, located in Mszczonów, Poland near Warsaw. It holds the record for being the deepest swimming pool in the world.

Diatomaceous earth, diatomite or kieselgur/kieselguhr is a naturally occurring, soft, siliceous sedimentary rock that has been crumbled into a fine white to off-white powder. It has a particle size ranging from less than 3 μm to more than 1 mm, but typically 10 to 200 μm. Depending on the granularity, this powder can have an abrasive feel, similar to pumice powder, and has a low density as a result of its high porosity. The typical chemical composition of oven-dried diatomaceous earth is 80–90% silica, with 2–4% alumina and 0.5–2% iron oxide.

A hot tub is a large tub full of water used for hydrotherapy, relaxation or pleasure. Some have powerful jets for massage purposes. Hot tubs are sometimes also known as spas or by the trade name Jacuzzi.

An infinity pool or infinity edge pool is a reflecting or swimming pool where the water flows over one or more edges, producing a visual effect of water with no boundary. Such pools are often designed so that the edge appears to merge with a larger body of water such as the ocean, or with the sky. They are often seen at resorts, estates, and in other luxurious places.

Jacuzzi Brands LLC, through its subsidiaries, is a global manufacturer and distributor of branded baths, hot tubs, pools and saunas. JACUZZI is a federally registered trademark of Jacuzzi Inc. as of September 5, 1978.

Kitsilano Pool, better known as "Kits Pool", is an outdoor saltwater swimming pool, located at Kitsilano Beach in Vancouver, British Columbia, Canada. At 137 metres long, it is the longest outdoor swimming pool in North America.
Laugardalslaug is a public thermal baths and swimming pool complex located in the Laugardalur district of Iceland's capital Reykjavík. With an indoor Olympic-size swimming pool, a 50-metre-long outdoor swimming pool, a 400 m2 playing pool, 8 hot pots of various temperatures, and a 17 m2 steam bath, it is the largest conventional swimming pool complex in Iceland. Receiving about 800 thousand visitors in 2010, it is the most visited thermal baths in Iceland after the Blue Lagoon.

The Leamington Kinsmen Recreation Complex was opened in 1985 as the F.T. Sherk Aquatic and Fitness Centre in Leamington, Ontario, Canada.

The Loretto Baths, in short Lollo, is the oldest open-air swimming pool in Germany. It is located at the foot of the Lorettoberg in Wiehre in the city of Freiburg im Breisgau. When it opened in 1841, it was the city's first public swimming baths. Its uniqueness lies in the partial separation of sexes. There is one pool which can be used by women only, but also one for the whole family. To this day, it is the only pool in Germany that has a separate pool for women.

Manor Place Baths is a former public baths, swimming pool and boxing venue in Manor Place off Walworth Road in Newington, London. The late-19th century Victorian structure, designed by Edward I'Anson, is a grade II listed building.
Mixed bathing is the sharing of a pool, beach or other place by swimmers of both sexes. Mixed bathing usually refers to swimming or other water-based recreational activities in public or semi-public facilities, such as hotel or holiday resort pool, in a non-sex segregated environment.

The Moskaubad is a public swimming pool in the Wüste district of Osnabrück, Germany. It was first opened in 1926 as an outdoor swimming pool under the name of “Moskau”; in 1933 its name was changed to the “Neustädter Freibad”. In the late 1990s the baths underwent major renovation and rebuilding work which added to them, among other things, a small indoor pool; they were also given back their old name. The outdoor and indoor swimming complex is visited by roughly 250,000 people each year.

The Perilous Pond, sometimes spelt Perelous, was an ancient pond fed by a spring in London located near the junction of modern-day Old Street and City Road. It gained its name from many tragic drownings there of people using it as a swimming hole. It was also used by fishermen and wildfowlers.

A plunge pool is a deep depression in a stream bed at the base of a waterfall or shut-in. It is created by the erosional forces of cascading water on the rocks at formation's base where the water impacts. The term may refer to the water occupying the depression, or the depression itself.
Respiratory risks of indoor swimming pools can include coughing, wheezing, aggravated asthma, and airway hyper-responsiveness. The chemicals used for pool water disinfection can react with organic compounds in the water to create disinfection by-products or DBPs. Exposure to these DBPs are the potential cause for respiratory symptoms in swimmers. Multiple studies have shown the potential correlation between chronic exposure to DBPs and respiratory symptoms among competitive swimmers but more research is needed on the effects of these DBPs on recreational swimmers. The studies on recreational swimmers that have been done show a decreased risk for respiratory symptoms due to a decreased exposure to DBPs. Some studies have been done on the vulnerability of younger children and DBP exposure. Studies done on the vulnerability of younger children demonstrate that immature lungs are more likely to absorb more of these DBPs.

Shoalstone Pool is a sea-water swimming pool or lido on Shoalstone Beach, Brixham, Devon.

A splash pad or spray pool is a recreation area, often in a public park, for water play that has little or no standing water. This is said to eliminate the need for lifeguards or other supervision, as there is little risk of drowning.

Spring Hill Baths is a heritage-listed swimming pool at 14 Torrington Street, Spring Hill, City of Brisbane, Queensland, Australia. It was designed by Thomas Kirk and built from 1886 to 1913 by William M Park. It is also known as Arthur Street City Baths and Municipal Baths at Spring Hill. It was added to the Queensland Heritage Register on 21 October 1992.

A swimming hole is a place in a river, stream, creek, spring, or similar natural body of water, which is large enough and deep enough for a person to swim in. Common usage usually refers to fresh, moving water and thus not to oceans or lakes.

The Swimming Pool & Spa Association of Australia Ltd, or SPASA Australia, is the national peak body of the Australian swimming pool and spa industry.

A swimming pool service technician is a tradesperson who cleans swimming pools and services major pool equipment such as pumps, motors, and filters.

The Tenino Stone Company Quarry, at City Park in Tenino, Washington, was listed on the National Register of Historic Places in 1983.

A wave pool is a swimming pool in which there are artificially generated, reasonably large waves, similar to those of the ocean. Wave pools are often a major feature of water parks, both indoors and outdoors, as well as some leisure centres.