Fraudsters are stealing around £7 million a year from British holidaymakers, according to a police report.
Scams include travellers receiving fake airline tickets, with flights to West Africa a particular target.
One couple were left more than £1,000 out of pocket after being conned into booking a holiday at Loch Ness at a romantic lodge that did not exist.
The report, from the City of London Police's National Fraud Intelligence Bureau (NFIB), showed that during a 12-month period more than 4,500 cases of holiday booking fraud were reported.
They included fake packages for the Hajj pilgrimage to Saudi Arabia and also for the Ryder Cup.
More top news
A band of heavy, thundery showers continues to move northwards through this evening, dying away overnight.
The Duke of Cambridge also laid a wreath to honour the victims before kick-off.
The mother of one of the Manchester attack victims has told of the distressing moment she found her daughter being treated after the attack.