Gravel Route, beginning and ending at the "Polo B - Ribatejo no Centro Centro de Cycling da Erra - Coruche", located in the village of Erra. This is one of the two routes of high skill level that runs through the areas south of Erra, taking place mostly on wide dirt roads with few unevenness. This route allows you to explore the agricultural areas along the Sorraia River to the town of Monte Novo, as well as the entire area to the south of the river, where the landscape is made of cork oak forests and grazing areas, characteristic of the region.