All air navigation location referencing is done by latitude and longitude; GPS coordinates. While these do provide a precise location reference they are difficult to use. A sequence of 18 numbers and letters and decimal points are impossible to remember, even in the short term, and errors in understanding, communication and transcription make their use challenging. Mix up two digits and you end up landing in the wrong field, potentially damaging crops, livestock or worse.
To solve this Helipaddy have added what3words to their platform.
For the more remote locations, with no address, there is now no way to get lost!