As Britain's third heatwave of the summer strikes this week, temperatures are not the only thing set to rise. Across the nation, prices of ice cream are soaring as people grapple to keep cool, with a single scoop of the confectionery now setting buyers back just shy of a tenner in central London. From a van aptly named 'Delicious Ice Cream' sat outside the British Museum, a basic vanilla ice cream cone with one scoop and a flake runs at a whopping £7 - and prices are conveniently omitted from its menu. Offering both tubs and cones of the sweet dessert, the ice cream truck sells flavours from mint to chocolate to bubblegum, luring in unsuspecting tourists seeking relief from the scorching heat as temperatures in the capital soared above 30C on Thursday and Friday. Despite the eye-watering price, staff from the museum stood outside confirmed they had seen even higher prices than that of the pricey van. In what appears to be an increasing trend as the summer months hit, traditional '99' ice cream cones with a chocolate flake have also been reported to be selling now for an equally eye-watering £6.Last weekend, vendors at British Grand Prix at Silverstone were found to be selling 99s for £5. In London, a van sat outside the British Museum charged a whopping £7 for a basic vanilla ice cream cone with one scoop and a flake Aptly named 'Delicious Ice Cream,' the van offered both tubs and cones of the sweet dessert for unsuspecting tourists seeking relief from the scorching heat A single scoop of the confectionery now setting buyers back just shy of a tenner in central London Staff from the museum stood outside confirmed they had seen even higher prices than that of the vanAnd according to a recent study by credit card company Zable, the highest average price for a single scoop cone in Britain is almost £4. The most expensive place to find a single scoop is Porthmadog in North Wales, coming in on average at £3.85 - meaning for a family of four, a round totals £15.40.Brighton came in second place on average at £3.71, followed by New Brighton in Merseyside at £3.70 and £3.65 in Aberystwyth. In Bournemouth, a single scoop costs £3.57 on average. This is not far off in Salcombe, who came sixth on average at £3.50. In Whitstable, a single scoop comes in at £3.38 and in both Tenby and Padstow, £3.33.The most affordable location cited by the company was Barton-on-Sea in Hampshire at just £1.95 for one scoop and £3.55 for two.Tynemouth in North Tyneside came in second for cheapest - running buyers an average of £2.28 for a single scoop of ice cream. In third place, Ilfracombe in Devon where prices are on average two pence dearer at £2.30. Portree in Scotland came in joint third at £2.30 for a single scoop, followed by Saltburn in North Yorkshire at £2.37. In fifth place came Whitby in North Yorkshire, where one scoop of ice-cream costs an average of £2.38.In recent years, staff wages, energy and fuel prices for mobile operators have also risen significantly, as well as the cost of packaging and environmental compliance.