Video: Mountain Biking Through A Colombian Salt Mine

Professional mountain biker Marcelo Gutierrez knows what its like to push boundaries on his bike, but for this video he really took things to a new level. In shooting this clip, Marcelo went deep underground to ride through a subterranean salt mine in his home country of Colombia. His route started above ground in a small town, but eventually plunged under the Earth, where it came to and end in a spectacular unground cathedral. As you'll see here, it looks like it was quite an experience.