hverfjall volcanic crater - 140m deep and 1km diameter, lake myvatn, northern iceland

hverfjall volcanic crater 140m deep 1km diameter lake myvatn northern iceland hverfjall volcano lava magma volcanic crater dome lake myvatn iceland rock landscape travel nature mývatn autumn explosion sky desert mountain sand mountains clouds cloud hill panorama view path rocks blue country snow footpath attractive attraction tourism tourist visitor rocky stones october fall panoramic cold freezing frozen magnificent stunning beautiful