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This is the moment a mountain biker cycled through a forest and got submerged into a four-foot 'sea of leaves'. Watch it below:
Guido Anderwert, 48, a marketing manager from Winterthur, Switzerland, was cycling along a woodland trekking trail when he and his friend Mark came across the autumnal sight.
In awe of the huge mound of fallen leaves that covered the ground, Guido and Mark decided to cycle across it - unaware of just how deep the leaves went.
In the clip, as Guido makes his way through the space, he - along with his bike - almost disappears under the leaves.
The pair filmed the bizarre scenes back in October but have only just released it on Instagram, where the clip has garnered over 400,000 views so far.
Guido said: "At the end of October, we tried to escape the colder fall weather on the north side of the Alps, in search for probably the last weekend with warm weather to go mountain biking.
"We planned to do an Enduro tour in the morning and had been climbing 1,200m elevation, and had been on the beginning of a very long downhill when we discovered this spot.
"There weren't that many leaves in the beginning but at that spot, the leaves were very deep, which made it very hard to find the trail and directions. We have never seen leaves that deep, so we thought we need to take a video to remember that day."
The mound was nearly four feet deep and made it impossible for the mountain bikers to see what was underneath - but Guido relished the challenge.
He continued: "The reason why the leaves were so deep there was the fact that it was some sort of a bowl on the lee side of the mountain ridge, so all the leaves from the other side were blown into that bowl.
"Everyone is blown away and can't believe that we were able to ride this. Many asked if we weren't afraid of some tree stumps or rocks on the bottom but honestly, we didn't even think about this when we rode down there.
"Lucky us, we didn't hit anything. Many people compared it with snow in winter but I have to tell you, it's a different feeling. You still ride on the ground, but you just don't see anything where you're going."
Guido said that both he and Mark are in shock about how much publicity their clip has received.
He added: "We had such a good time fooling around there, taking pictures and videos but neither of us expected that this video was going to go viral.
"You don't think about the results of a video on the internet when you do stuff like that, you just enjoy the moment and the scene."
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