UK tourists are flocking to destinations where the pound is strong against the local currency, according to a survey.

Based on currency sales, Brazil, Vietnam and Hungary are the most-popular spots for holidays, the survey from Post Office Travel Money revealed.

Boosted by the World Cup, the Brazilian real saw a 215 per cent increase in sales in June-August 2014 compared with the same period last year.

Sales of the Vietnamese dong were up 33 per cent while the Hungarian forint rose 26 per cent.

Other countries where sales of the currency soared this summer included Trinidad and Tobago, Jamaica, Croatia, and the USA.

Andrew Brown of Post Office Travel Money said: "This suggests holidaymakers are becoming increasingly canny and doing their homework to see where exchange rates are favourable and living costs are low as well as looking for keenly-priced packages before booking."