For the last couple of years the ‘latest thing’ in locating yourself, especially if you want to give a really accurate position to the emergency services, is an app called What3Words.

What3words accurately points to a very specific location, and as well as being used by delivery companies is now being used by many rescue organisations for accuracy and ease of use.

Its developers divided the world into 57 trillion squares, each measuring 3m by 3m (10ft by 10ft) and each having a unique, randomly assigned three-word address.

Check out the app at: