Hi Michelle
I look after the POI Downloads on behalf of the site.
'POI' stands for Point of Interest, and it's a term widely used in connection with sat nav devices.
The POI Downloads on this site cover England, Scotland and Wales and currently provide locations for well over 3,000 wild camping and pub stopover places, and the number's growing all the time.
The download (which is for full members only) includes files to browse online with Google Earth, or to install on a desktop or laptop computer for use with Microsoft Autoroute, or to install on most major makes of sat nav.
If you use it on a sat nav, you can navigate to a wild camping spot of your choice.
If you click on the Site Navigation / POI Downloads link on the home page you can read more, and learn how you download the files. There is a POI File Help & Support forum with a lot more information.
Have fun!
Regards
Chris