Motorway A1, exit Orte, follow the directions for viterbo and take the exit Viterbo Nord; drive on this road until you see the sign "Semianello, Strada provincial Taverina", one you are in this road take the first at right called "Strada Teverina" and at the stop turn left. After 500 mt. and after the last small town turn again left and drive for 200 mt.