closeup to a crack into ground formed by fumarole sulfure gas expeled by a near volcano

rock geology soil sand sea wildlife wall formation floor wood asphalt flooring terrain wadi boulder animal art closeup crack into ground formed fumarole sulfure gas expeled near volcano above active active volcano adventure aerial background beautiful climbing crater environment eruption geology green hike hiking italian italy landscape mediterranean milazzo mount mountain mountains national natural nature outdoor panorama panoramic park river rock scenery scenic sicily sicily tourism sky smoke stone summer sunny travel trekking trip valley view volcanic vulcano