Britons travelling abroad for stag and hen parties are being urged to research their destination and to dress and act appropriately to avoid a hostile reception or even arrests.
The advice comes after the Foreign Office (FO) said some Britons had found themselves lying upside down and naked inside a bin and being chained to a police car while on stag or hen parties abroad.
Other incidents included a partygoer being thrown into a canal in Amsterdam and another falling off a hotel balcony and spending time in hospital, according to the FO.
The report added that nearly one million Britons are planning to head overseas for pre-wedding parties this year, with almost 169,000 doing so without any travel insurance.
Phil Lord, from the FO, said: "Stag and hen dos are all about having a great time but the celebrations can come to an abrupt end if things go wrong.
"Cultural differences mean some people will take offence to risque fancy dress costumes and rowdy behaviour.
"So, to avoid a hostile reception from the locals or even spending the weekend in jail, make sure you research your destination and know your limits."
According to the FO report, popular overseas destinations for pre-wedding parties this year are Riga in Latvia, and Barcelona and Marbella in southern Spain.
Maria Leng, a consular official in Spain, said: "Consular staff in Spain regularly handle cases involving arrests, hospitalisation and lost and stolen passports.
"Have fun but remember a combination of sun and alcohol doesn't always mix."
© Press Association 2011