beautiful mountain，lake，grassland with lonely tree

adorable air alone alpine alps austria background beautiful bitahai blue calm china climbing cloud clouds cloudy country countryside ecology enjoying farm field fields forest grass grassland high hiking holiday lake land landscape leisure lonely meadow mountain mountaineering nature outdoor panorama peaceful peak picturesque pine pond pudacuo quiet refreshing relax river rock rural scenic serenity shangri shine sky spring summer sun sunny tibet tibetan tourism travel tree vacation valley view walking water white wild with wood wooden yellow yunnan