MTB XC Route, beginning and ending at the "Polo B - Ribatejo no Centro Centro de Cycling do Arripiado - Chamusca", located in the village of Arripiado. High skill level route of the Arripiado Cycling Center - Chamusca, considered the ex-libris of all routes. It is considered one of the best routes, as it passes on somewhat technical paths and in places of enormous natural beauty, crossing the Foz valley that takes you to the Tagus River. The degree of difficulty is attributed essentially to the technical requirements of the paths that you use, since some places have some difficult technical points. The main points of interest are Stream of Foz and its Biodiversity Station, as well as the ride along the Tagus river, where a few kilometers provide a fantastic view over the river, as well as the beautiful Almourol castle on the other side of the river.