Summer workers discovered a break-in at Fellingsbrobadet on Monday morning. Someone had smashed a window and entered the cafeteria.
It is not the first time the bath has been hit by a burglary. Linus Arvidsson, chairman of Fellingsbro GoIF which runs the facility, says it happens about once a year.
Previously, the football club's clubhouse, the ice hall and the caretaker's storage on the same grounds have also been broken into.
Arvidsson expresses surprise that someone finds it worthwhile to enter the premises.