These people normally cross by ferry or plane to Barcelona and continue their trip by buying another ticket in that town if they are not travelling in their own car.
This practice can eventually turn into an additional burden on the budget of Calvia if not stopped. What is needed is for Calvia to check that people are genuine residents before giving this privilege.
In any event the fiscal haemorrhage has to be stopped.
It is high time the above is investigated by the central government by checking if the French property owners have complied with Spanish tax laws.
Of course the French tend to look down on Spain and consider that country as exporter of cheap labour hence their complete contempt for Spanish laws.