Clubbers face being slapped with a life-changingly large fine if they head to the wrong bash when on holiday.
Authorities in party islands Ibiza and Majora are getting strict on certain kinds of get-togethers this summer, and are not being shy when it comes to handing out serious financial penalties.
The Balearic Islands are going after clubbers who attend 'unlicensed events', as well as those who run them in a bid to crack down on increasingly rowdy shindigs on the Spanish island chain, reports the Sun.
Police on Ibiza and Majorca have been given powers to shut parties down and they are able to issue fines at the end of the night.
If a party takes place in a protected natural space or too close to homes, everyone involved in organising, marketing and advertising - as well as participants - can be fined up to £25,000, local media reports.
Those heading to official clubs such as Pacha, Amnesia, Eden and Destino need not worried about getting fined, as partying in above-board places is still very much allowed.
The UK Foreign Office has told British holidaymakers to the Balearic Islands to keep the rules in mind, highlighting potential danger from attending the illegal parties.
“There have been a number of serious accidents involving people attending irregular commercially promoted parties in villas and private homes on the islands of Ibiza and Mallorca," a statement from the department reads.
"Licensed clubs and bars are required to meet safety and security standards, including emergency exits and capacity limits, and to have trained, licensed security staff.
“Irregular commercial parties may not meet these standards. Heavy fines may be imposed by local authorities to anyone attending irregular commercial parties.”
That includes a new law brought in last year in the likes of Ibiza and Majorca, with limits on free booze within all-inclusive packages.
Party boat cruises, all-you-can-drink bar crawls and some drink offers will also be banned in an attempt to cut down on rowdy behaviour.
Elsewhere in Spain specific local rules have been introduced in a bid to crackdown on what might be considered as bad behaviour by tourists.
Topless men and women wearing bikinis face being fined up to 300 euros if they're spotted on the street in Barcelona and Majorca, and could even be issued on streets adjacent to the beach too.
Holidaymakers have been warned that some of Majorca's will deny entry to revellers wearing the likes of football shirts or glow-in-the-dark hats.
Meanwhile, drinking alcohol on the streets is banned in the likes of Barcelona and Madrid, with fines of up to 600 euros (approximately £507) for those who flout the rules.
