"J3S Geocoin" game is a kind of an outdoor geocaching game, based on searching for previously hidden geocaches - QR codes.
In the game „The Visegrad Fund of King Jan” you are welcome to take part in the game which is about searching for QR codes in the public space connected with King Jan III Sobieski in Poland, Czech Republic as well as Hungary and Slovakia.
As soon as a proper numer of QR codes located in public space are read by your mobile phone or tablet, you are entitled to pick up unique coins minted as a prize in the game.