The gravel route between Puente de los Fierros and Pola de Lena is a short and fairly easy one, covering approximately 13.5 kilometres with a total elevation gain of 85 metres. It mostly runs along compacted tracks and minor roads to provide a cyclable and fast-paced route, ideal for enjoying the countryside without significant technical difficulties.

After leaving Puente de los Fierros the route gently descends, allowing comfortable pedalling through wide valleys and wooded areas. The varied terrain means that riders can maximise the potential of a gravel bike, with long stretches in good condition that encourage you to ride at a steady pace.

The stage ends at Pola de Lena, a town located in a quiet setting with all services available. It is ideal for riders looking for an enjoyable day on the bike without too much effort, combining the natural beauty of the Asturian landscape with ideal terrain for gravel bikes.

The gravel route between Pola de Lena and Puente de los Fierros is a short but slightly uneven one. It runs for approximately 13.5 kilometres with a total elevation gain of 215 metres, which makes it easy. The route mainly follows compacted tracks and minor roads, ideal terrain for gravel bikes, with a balance between smooth riding and natural landscapes.

After leaving Pola de Lena, the route begins with a comfortable stretch before starting a moderate climb. The slopes are not very steep, but the total elevation gain does require constant effort. As riders progress through rural settings and wooded areas, they can enjoy a varied route with views over the Asturian valleys.

The route gently drops down to Puente de los Fierros, the end of the stage. It is ideal for those seeking a gravel bike ride with moderate (although not unduly difficult) uphill sections, rewarding riders with a spectacular natural setting.