volcanic landscape with boiling mud, hverir - namafjall - iceland

black boiling clinker closeup clouds color colorful crater day daylight desert desolate destination emission eruption europe field fog gas geothermal geyser gray haze heat horizon horizontal hot hverir iceland island landmark landscape mineral mist mud namafjall national nature north orange outdoor park perspective plain power red reserve rocks scenic source steam sulfur summer thermal tourists travel unreal valley view volcanic volcano white yellow