Sulphur smoke inside Ijen Volcano crater; East Java, Java, Indonesia

horizontal outdoors day daytime smoke color colour beautiful yellow cloudy active rocks rugged rocky shoreline asia crater asian landscapes java overcast indonesia volcanic sulphur sulfur acid volcano volcanoes smokey awe inspiring craters nature blue mountains beauty in nature outside nobody travel landscape mountain colourful color image water environmental issues rock non urban scene billowing colour image no one no people east java ijen