There is a joining of the Kizu-gawa River, Uji-gawa River, and the Yodo-gawa River in Kawakita Nature and Sports Park located in the northern edge of the city.
市の北端のかわきた自然運動公園内に、木津川(京都府)、宇治川、桂川(淀川水系)の3川合流点がある。