mud pots and hot springs at krysuvik geothermal area

area attraction boil bright colored colorful colors dangerous detail dramatic europe field formed gas geological geology geothermal green ground heat hot hue iceland icelandic krysuvik land landmark landscape minerals mud mudpot natural nature nordic outdoor pots red reykjanes seltun smell smoke soil spring springs steam stinking stone sulfur sulphur summer texture thermal vapour view vivid volcanic volcano yellow