By which body of water is XXX located?
Ciechocinek
Ciechocinek (t͡ɕɛxɔˈt͡ɕinɛk) is a spa town in Kuyavian-Pomeranian Voivodeship, Poland, located on the Vistula River about 10 kilometres (6.2 mi) east of Aleksandrów Kujawski and 20 kilometres (12 mi) south-east of the city of Toruń.
Vistula