Tůně u Hajské is natural monument close to the town Strakonice in Strakonice District, Czech Republic. The area is protected due to large amount of small pools in Otava River floodplain which were formed as a result of gold mining in the Middle Ages. These ponds are containing habitat of critically endangered aquatic plant Hottonia palustris and many representatives of amphibian species as Bufo bufo, Bufo viridis, Bombina bombina, Hyla arborea, Pelophylax esculentus and Rana ridibunda.

Tůně u Hajské
Tůně u Hajské in spring
Map showing the location of Tůně u Hajské
Map showing the location of Tůně u Hajské
Location of the natural monument Tůně u Hajské
LocationSouth Bohemia, Czech Republic
Coordinates49°15′35″N 13°56′41″E / 49.25972°N 13.94472°E / 49.25972; 13.94472
Area6.3836 ha (15.774 acres)
Elevation387–390 m (1,270–1,280 ft)
Established1 December 1985
OperatorAOPK ČR