Foggy blue hour at Crni Kal Viaduct in Slovenia. This location is incredibly hard to catch during foggy conditions. There whole place was completely covered in fog during sunset, so I couldn't see anything from the viewpoint above the highway. After waiting for almost an hour, during blue hour the fog suddenly lowered just enough so that I could see the highway above the fog. I took many long exposure photos, out of which this one was my favourite. The gear I used was Canon EOS R6 mark II and Canon RF 100-400mm lens. The settings were f/5.6, 6 second exposure, ISO 320, at100mm focal length.