mountain ring in kislovodsk, stavropol krai, russia. view of picturesque rock and blue sky in summer, scenery of window .

kislovodsk stavropol russia nature ring mountain hole summer mineral waters arch attraction caucasian caucasus cliff clouds destination formation hike koltso krai landmark landscape mount national outdoor park picturesque place resort rock russian sand scenery scenic scene shape sightseeing sky stone tourism tourist travel vacation view wall window blue closeup