A hiker looked out over a beautiful sea of clouds from a mountain peak. Footage shows Liberty Arnaiz Sobreira carefully ...

It revealed: An unstable layer just above the ground — encouraging the air to rise and condense into clouds. Strong westerly winds about a mile high over top the mountains where the clouds ascended.

Over 12 miles long, this course climbs through the Rocky Mountains up to the summit ... can drive on turns into a dangerous trek above the clouds for the final leg to the finish line.