Pools are hydraulic structures designed for water sports such as swimming, diving, scuba diving, water polo, underwater rugby, synchronized swimming and others. Swimming pools are 25 or 50 meters in size. The number of lanes is usually from 5 to 10. In the center of each lane below, as well as at the ends of the pool, signs are placed to make it easier for swimmers to swim without deviating from the straight course. Pools in Baku also operate according to these international standards. In addition, indoor pools also operate in Baku. In general, although most pools are located in Baku, there are also enough in the regions. There are up to swimming pools.