Abstract: To provide a water toy with which infants can play joyfully in a bathroom, which is easy to be fixed in place and which prevents the infants from losing their interests in playing therewith, there is provided a water toy including a pedestal portion having a pump, a circular cylindrical shaped column fixed to an upper portion of the pedestal portion, which includes a water flowing tube in an interior and a water outlet port at an upper end thereof, a spiral water flowing rail fixed to a circumferential edge of the column, a first water flowing rail detachably coupled to a lower end of the spiral water flowing rail, which includes a windmill portion having a rotor turned by using a flow of water, a second water flowing rail detachably coupled to a lower end of the first water flowing rail while being fixed onto an auxiliary fixing base, a third water flowing rail detachably coupled to a lower end of the second water flowing rail, a fourth water flowing rail detachably coupled to a lower end of the third water