Taking the ban on smoking a step further,Naples enforced a law prohibiting smoking near pregnant women and children in its public parks.
"We're not going to use a ruler to measure the distance between smokers and women or children," Deputy Mayor Gennaro Nasti told AFP.
"But it will be forbidden to smoke during open-air shows or under covered structures."
Violators will have to pay fines of between 27.50 and 500 euros (40 and 730 dollars), Nasti said, adding that police would enforce the law.
Smoking in public buildings has been illegal throughout Italy since January 2005.