Crystal Clear Frozen Lake - A video of a spectacular scene taken by hikers walking across a frozen lake, in which the surface appears like a crystal clear sheet of glass, has gone viral. Now, the footage of the crystal clear frozen lake has sparked a heated debate over whether it is a hoax or if it real.

The crystal clear frozen lake had been encountered by hikers who came across it during one of their adventures. The footage showed ice so clear, appearing as if they are walking on water.

Slovakian hiker, 38-year-old Tomas Nunuk from the capital Bratislava, captured the scene and made a short video of him and his friends walking on the crystal clear frozen lake after their hike up Slovakia's High Tatras mountain range, according to the Daily Mail.

Nunuk had been hiking with a friend in the High Tatras Mountains on November 3 when they encountered the crystal clear frozen lake. The pair eventually changed course as conditions impeded their original route and came across the crystal clear frozen lake, reports WPVI-TV.

The video of the crystal clear frozen lake shows Nunuk standing in the crystal clear ice that is both overwhelming and mind-blowing.

The video had been aptly titled "Walking on beautiful clean ice in Slovakian Mountains" and was published on YouTube December 8. In only a few days after its post, the video of the crystal clear frozen lake quickly raked in almost a million views.

While some viewers were left aghast and amazed at the 38-second video showing three hikers walking across the crystal clear frozen lake, others are reportedly doubted if the video is real.

"I've never seen ice that clear in my life. And I'm Canadian, so I've seen quite a bit of ice," said YouTube user Shawn G.

Another user agreed with Shawn. Narwhal Bacon, a video analyser and Redditor also commented on the crystal clear frozen lake video and said, "Last time I tried this with such clear ice, it just collapsed from under my feet. I'm calling fake on this one guys."

Others meanwhile, didn't need convincing as they believed the crystal clear frozen lake video convincing enough to defend it in the comments.

"Yep, the guy who was filmed was wearing airboots, than they photoshopped those away, a few hundred thousand square metres of cardboard mountains in the background were then added, and of course the one who was filming was suspended from a helicopter, but they photoshopped the ripples in the water away, and there you have it... fake (lol)," YouTube user John Callaghan sarcastically wrote of the authenticity of the crystal clear frozen lake video.

"I would advise you to visit this place instead of arguing about the originality of the video," said Slovak YouTube user Jakub Kutny.

An experienced tourist Igor Ludma, from Slovakia, was meanwhile able to provide a scientific explanation for conundrum regarding the video of the crystal clear frozen lake.

"It is only possible when the temperatures fall from being relatively mild to very cold very quickly, and at the same time it's important that there has not been any snow which tends to make the ice very cloudy," Ludma said, before adding, "And we have had those conditions lately which would explain this very clear ice. It looks like it was about 2cm thick and it is therefore able to carry a man."

Ludma also backed up the point noted by several other users saying that it is possible to hear the cracking of the ice as the hikers were walking over it.

It appeared like a miracle, but when it comes to science, the video of the crystal clear frozen lake is backed up by Reddit. According to the site, murky ice is created when the water freezes too quickly, trapping impurities inside crystal lattice as it crystallizes. The crystal clear frozen lake just took a longer time to freeze, allowing itself to reject the impurities inside of it, according to Lost at E Minor.

The creator of the crystal clear frozen lake video has not added details about exact coordinates of the video's filming. However, Slovak tourists who have an inkling of their homeland's highest mountains say the lake is called Velke Hincovo Pleso.

Located 6,300ft above sea level in Mengusovska dolina and under the Koprovsky stit mountain in Slovakia, the name of the lake is Velke Hincovo Pleso .

The crystal clear frozen lake is 176ft at its deepest point, reportedly making it the biggest and the deepest in Slovakia.