scenery of tourist man walking on kerlingarfjoll mountain in geothermal area on hveradalir trail located in central icelandic

adventure attraction beautiful brown crater destination environment evening field gas geological geology geothermal highland hiking hill hveradalir iceland icelandic journey kerlingarfjloll landmark landscape man mountain nature picturesque range ridge river rock scenery scenic season sky smoke snow spectacular steam stone sulphur summer tourism travel valley view volcano walking wilderness