From the switchback in the Semprevisa road to the south, parking by the large trough fountain that sits by the river bed just below the bridge on the first main switchback on the road to semprevisa.
From here, just by the bridge, a path goes up on the left side of the ravine. It is tempting to gain height along the ravine, and it may be perfectly possible to arrive this way, but the marked path on the map is relatively clear, traversing the bottom shoulder of this hill, after some height has been gained, and then along quite a substantial wall-cum-path. Once on the western side of the hill following this path around, meeting another fence and then heading up from here to the visible highest point. Once here through this wooded area, the summit is clearly visible to your left. A good path begins the descent someway down the ridge (due south), and then it is animal paths to return to the wall terraced followed on way up. This path is not marked. It is fairly obvious if you know what to look for or expect but could be confusing for the uninitiated.