retreating skaftafell glacier in vatnajokull national park, iceland

arctic blue change climate crack crevasse crevice europe falljokull fissure frozen glacial glacier global hill ice cap iceberg icecap iceland icelandic lagoon lake landscape melt mountain national nature oraefi outdoor park range reserve retreating ridge rock scenic skaftafell skaftafellsjokull snow svashy nafelsjokull tourism travel vatnajokull view warming water white winter world heritage site