The cache is approximately half a mile from the carpark.
NOTE: Although I've never seen the gates closed there is a sign saying 'Gates Closed at Dusk'....you have been warned!
To find the cache you will be required to find four NFC tags, each tag will give you the co-ordinates for the next tag.
When you have found a tag you will need to scan it (make sure NFC is turned on!).
After scanning you will see the co-ordinates for the next stage listed (see the example below). Enter these co-ordinates in your phone app or GPSr.
Inside the cache is another NFC tag which will open the online log page so you can log your visit if you want.