Moutaineers trecking up the summit of Mont Blanc in France will have to fork out €15,000 (£12,600) to cover costs for their own rescue missions if they get stranded or die.
The perilous Goûter route from Saint-Gervais-les-Bains takes climbers to the top of the highest peak in western Europe.
Daring expeditioners would have to pull together €10,000 to cover the cost of a rescue, and €5,000 for a funeral in case they die during the hike.