The BBC have released a video showing the sky high efforts by the National Trust to maintain the main path up Pen y Fan.
The trust now uses a chartered helicopter to airlift tonnes of gravel up the mountain in the Brecon Beacons to help repair the popular path as well as protecting access to the path during the process.
The helicopter has been making up to 100 trips a day with specially selected rock which should blend in with the landscape.
The BBC created a video with a 360 degree view, which can be seen below, of the operation to show their viewers how the work is done.
The National Trust has said that the main path up Pen y Fan, from the Storey Arms, was eroding by as much as 10cm a year because the mountain has seen visitor numbers double to 350,000 in five years.
The trust, which spends roughly £100,000 annually on paths in the central Beacons, has thanked members of the public for answering their appeal by raising £10,000 of the £30,000 needed to carry out the work.
Lead ranger Rob Reith said: "If we don’t put some material down to protect the path… it would just be several gullies, scarred landscape, very difficult for people to walk up and we’d lose all these green rolling hills."