HOLIDAYMAKERS on self-catering trips face paying 50 per cent more if they shop in their resorts instead of out-of-town supermarkets, according to a new survey.

Basic provisions for a one-week family holiday in the Portuguese Algarve, for example, are 48 per cent more expensive at a resort mini-market than at a supermarket, the survey by Post Office Travel Money and holiday company Cosmos showed.

Those able to get to supermarkets would also get better value in Lanzarote, Crete, Minorca, Majorca and Limassol in Cyprus.

Including items such as bread, milk and breakfast cereals, the biggest disparity was in Majorca, where the provisions cost £86 in supermarkets but as much as £133 more in resort shops.