The Borowy Jar app - the mountain ghosts tourist attraction of Jelenia Góra, will help in getting to know and discovering places in the former park. To use the application, we do not need internet access because it works offline. We will find useful information in it, ie: descriptions of places that once existed, and today only a trace of them remains or a fragment has been preserved.The information contained in the application will give you an idea of the former beautiful place visited by tourists from around the world. Descriptions of old guides and preserved archives are presented. More information on the website borowyjar.pl