boiling mudpots in the geothermal area hverir and cracked ground around, iceland in summer. myvatn region, north part of iceland

area boil boiling bubble colorful contrast cracked crater crystals dangerous detail drought eruption explode explosion field freeze fumarole fume gas geology geothermal grain gray ground hell hole hot hverir iceland krafla landscape liquid minerals mud mudpot mudpots myvatn nature north outdoor part pot region sculpture smell soil solfatare splash steam stinking sulfur summer texture thermal tourism touristic travel vivid volcanic volcano