The price to climb Mount Everest will soon increase for the first time in nearly a decade, as Nepal announces a sharp mark-up in permit fees. From September, those seeking to summit the world's tallest mountain during peak season will have to pay $15,000 (£12,180), a 36% rise on the longstanding fee of $11,000, officials said on Wednesday.

Climbers are searching for ways to climb the highest mountains in the world in shorter time periods, including the use of controversial substances.