Eastern heights overlooking to the Arzank River valley in distance of  two kilometers from Qazvin's north, It has  a mild climate and is an old amusement park for people. Today, it is prepared by municipality in an area of one thousand Hectar and host the citizens and tourists.In order to complete this major project chairlifts , summer theater , track cycling , motorcycle riding , equestrian , children 's playground,  Museum of Natural History , various water features and cheap champs have been predicated for travelers . easy access , Foothills climate overlooking to Qazvin and  Rudbar Shahrestan Pathway are remarkable characters of Barajin park in an area of one thousand Hectar.