The sands occupy about 20 hectares and in 1963, part of it was declared a special geographical and botanical reserve as an easily recognizable and unique habitat in Croatia, and the intention of preserving the great diversity of vegetation, where the conditions of life on the sand could develop and adapt to certain plant species; among others, and over 300 species of butterflies .
Površinom zauzima oko 20 hektara i dio toga je 1963. godine proglašeno posebnim geografsko-botaničkim rezervatom kao lako prepoznatljivim i jedinstvenim staništem u Hrvatskoj, a s namjerom očuvanja osebujnosti vegetacije, gdje su se u uvjetima života na pijesku mogle razviti i prilagoditi samo određene biljne vrste; među ostalima i preko 300 vrsta leptira.