Wales' national parks' visitors spending £1bn a year
Visitors to the three national parks in Wales are spending £1bn a year, a report has claimed.
Annually, more than 12 million people visit Snowdonia, Pembrokeshire Coast and Brecon Beacons parks.
The body representing them claims the protected areas are "the lungs of our nation".
George Herd reports on whether a price can be put on the glorious landscapes.