Coll Mariner from Castellfollit de la Roca

The Coll Mariner from Castellfollit de la Roca, located in the Girona region, is one of the most demanding climbs in the world. With a total length of 21.61 kilometers and an average gradient of 4.14%, this climb challenges even the most experienced cyclists.

Why Ride the Coll Mariner from Castellfollit de la Roca?

The Coll Mariner from Castellfollit de la Roca is a true test of strength and endurance. Known for its steep gradients and long ascent, this climb has earned its HC category rating, pushing cyclists to their absolute limits. Rising from 261 meters to 950 meters, it provides an epic climb of 895 meters over 21.61 kilometers.

Cycling Tips

Make sure you're prepared for this extreme challenge with plenty of water, nutrition, and mental strength. The consistent incline and high altitude make this one of the hardest climbs you'll encounter.