steam rising from a fumarole (fumerole) vent at namafjall hverir geothemal area in east of lake myvatn, northern iceland

october steam boiling water boiling sight attraction tourism visitor volcanic beauty beautiful background scenic outdoor sulfur námafjall hverir lake myvatn iceland mývatn namafjall geothermal autumn fall duncan brown cold road landscape mountain rock nature sky desert volcano mountains travel park snow lava clouds spring springs sulphurous mud hot fumarole vent cracked