Puerto de Ventana, from San Martín

The Puerto de Ventana, from San Martín, located in the Asturias region, is one of the most demanding climbs in the world. With a total length of 19.76 kilometers and an average gradient of 5.74%, this climb challenges even the most experienced cyclists.

Why Ride the Puerto de Ventana, from San Martín?

The Puerto de Ventana, from San Martín 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 450 meters to 1583 meters, it provides an epic climb of 1133 meters over 19.76 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.