Gravel Route, beginning and ending at the "Polo C - Serra d'Ossa no Centro de Cycling de Serra d'Ossa", located in Borba. Circular route of high skill level that connects Rio de Moinhos to Estremoz by secondary roads and mostly on dirt roads. It then returns to Borba through São Bento de Ana Loura, passing by small agricultural properties and some areas of "Montado". It crosses Borba and then returns to the Cycling Center passing Barro Branco.