In my last tour in Iceland in search of the Auroras.
During the day looking for possible places with clear skies in the forecast to take the best photos, an example is this office of an underground caves where you can visit ancient lava tunnels of the volcanoes.
At night photographing and enjoying, thanks to the solar storm that displayed for several days and which allowed shows of 15-20 of great activity, capturing the images at 1 or 2 seconds and lighting the ground with colors on the nights of the new moon