This is what -35 C in Finland’s surreal winter forest is like

The view towards Russia from the Kuntivaara fell. Stian Klo: "I'm very attracted to winter scenes and generally cold themed images - and naturally I was very excited by this 'blue hour' dawn session."

Stian Klo: "A pastel sunset in the Riisitunturi National Park. I decided to include my friend in the picture for scale. It's a magical world in there – a photographer's paradise."

Stian Klo: "The black woodpecker (Dryocopus martius) is an impressive and somewhat elusive creature. We spent a full day in a bird hide close to the Russian border looking for the golden eagle. While the eagle showed and surely was impressive, the black woodpecker stole the show with its dancelike movement and dark contrast to the pure and white landscape."

Dawn in the Riisitunturi National Park. Stian Klo: "I had seen this composition the day before, and decided to give it another go. The magenta glow lasted for only seconds as the clouds moved in quickly and ruined what looked like a good sunrise. It didn't matter though, as I got the shot I wanted."

Riisitunturi National Park."The sunrise that never happened – we've all been there!" remembers Stian Klo. "The day before this entire forest lit up in gloriously warm colours, but the fog and mist creeped in on us and created an ethereal and atmospheric scene instead."

Stian Klo: "Outhouses don't come any better than this. Captured on Kuntivaara fell, just 3 km shy of the Russian border. We snowmobiled up in the dark, it was -37 degrees Celsius and it hurt to breathe at times. Our guide, Ekki, told us a wolverine had just visited the same area, as he could see fresh tracks."

"We had spent all day in the Riisitunturi National Park, thick clouds blocked every single ray of light," says Stian Klo. "Sunset looked like a dud. Due to the amount of humidity in the air, it felt like it was actually raining even though it was well below -25c. It also created a diffused kind of glow surrounding the forest. Out of nowhere, we could see signs of something brewing on the horizon - five minutes of pure bliss!"

Frozen coniferous trees in Riisitunturi National Park. The forests of Finland form part of the Boreal biome - a semi-contiguous forest that runs around much of the northern hemisphere.

The Myllykoski rapids in Oulanka National Park. Stian Klo: "This area is very photogenic and popular. I wanted to go home with different angles and compositions than the ones I had seen before, and decided to focus on the smaller and more intimate details."

Stian Klo: "The Myllykoski rapids in Oulanka National Park was particularly atmospheric this cold January morning. With stable temperatures of around -30 degrees C for a week, big pieces of ice gather up in the river and gets spun around."

The taiga forest as seen in the Oivangin Lomakartano Oy area, close to Ruka and Kuusamo. Stian Klo: "I walked around in this forest looking for compositions for hours, it all felt very monochromatic to me and quite lifeless, quite opposite to the feeling I had in the frozen spruce tree forests at a higher altitude."