landscape view of mount batok in the distance during a beautiful sunrise in east java, indonesia

mountain plateau landscape cloud wilderness valley hill ridge nature fell morning terrain sky summit alps snow highland mount batok bromo semeru distance beautiful sunrise active volcano east java indonesia view tengger national park batok volcano alert bromo caldera cemoro lawang crater java erupting eruption hike hiking indonesia jeep tour landscape massif morning penanjakan mountain park natural nature reserve outdoor romantic sky scenery sea sand semeru smoke solfur sulfur dioxide sulfuric gases sunrise sunset tourism travel trek trekking viewpoint volcanic activity gas volcanology widodaren