One of the best bathing tanks or pools in ancient Sri Lanka is the pair of pools known as Kuttam Pokuna (Twin Ponds/Pools). The said pair of pools were built by the Sinhalese in the ancient kingdom of Anuradhapura. These are considered one of the significant achievements in the field of hydrological engineering and outstanding architectural and artistic creations of the ancient Sinhalese.

A garden was landscaped which separates the two ponds which long is 18½ ft. The larger pool of the two is 132 ft by 51 ft, while the smaller pool is 91 ft by 51 ft. The depths of the two pools are 14 ft and 18 ft for the smaller pool and the larger pool respectively.