Originally designed for industrial use, QR codes have become common in consumer advertising. Typically, a smartphone is used as a QR-code scanner, displaying the code and converting it to a useful form such as a standard URL for a website, thereby obviating the need for the user to type in a web address manually.
The QR trail in Bute Park is a series of little plaques bearing these codes dotted around the Park. They are funded by the Council and can be found on posts or on walls where, once scanned, they will provide some basic information about a nearby feature of interest and a link to a website where more info, photos and web links can be found.
Here is a sample QR code to illustrate how it looks – the plaque on which this particular code is affixed is by Fisher’s Bridge. You will need an app such as QR BARCODE SCANNER (for Androids) or QR READER (for iPhones) to read the code.