Around St. John's eve there are lot of legends. The first legend tells about water of life, which thanks it its magic healed sick people and one could have leaded it from a spring at the summit of Sleza. The one who dared to take on a journey a scoop up this water was exposed to the communion with strange powers that aimed to turn him back at all costs. A lot of people, particularly Wroclaw's inhabitants who appreciate the value of its taste come here to get the water of life.

The second legend tells about the Sabbath of witches who after building a chapel on Sniezka were moved to the summit of Radunia - second highest mountain in the massive of Sleza which was until recently called Sepia Gora. Here during the Walpurgia Night (30th of April - 1st of May) annual council gathers the witches from all Silesia. They witches frolic then, disturb the inhabitants who live in the neighbourhood and lay plands what kind of iniquities will they commit during the whole following year. The Sleza's surroundings appealed so much to the witches that many of them settled here for good, assuming likeable figures and only at the Sabbath's night they recall themselves about their true origins.

 

The Belarussian group sings traditional songs from "Kupala's night" at the Rynek in Wrocław.

Another legend tells us about a flower which, during the shortest night, bursts into blossom somewhere on a slope of Sleza. It brings luck and wealth to someone who finds it. Illusory is this luck however, since one can enjoy this wealth only solitarily.

The mythical atmosphere of this mountain is fostered by mysterious, stony sculptures, boulders marked with aslant carvings of crosses or mysterious stony dams surrounding three of the hightest hills of the massive: Sleza, Radunia, Wiezyca, which have been discovered for many years in its slopes.