Walkers going up Pen y Fan in the Brecon Beacons will soon be charged £7.50 to park at the site.
A new car park will add about 200 more spaces, giving visitors access to a total of 260 car parking spaces away from the nearby road, the A470, and improvements will include disabled parking spaces, and electric vehicle charging points, as well as room for minibuses, coaches and cyclists. There will also be an area for the emergency services.
There are also plans for new visitor facilities, including toilets with disabled access, a Changing Places toilet and baby changing facilities - some of which will be available 24 hours a day.
Improvements to signage, footpaths and information will also allow people to better plan their day.