Three tourists got more than they bargained for when they were seeking relief from the arduous heat, Reuters reported.
Two Germans and one Austrian were fined for cycling in the nude along the riverbanks of the River Danube in Serbia, which is currently facing a record-setting heat wave.
"Police arrived after being alerted by passers-by," a police spokesman said.
Serbia and other parts of the Balkans have dealt with sweltering temperatures hovering around 104 degrees Fahrenheit.
All three men were brought to a magistrate on charges of disrupting public peace and order and were fined 125 euros each.