From the car park to the south at Santa Serena. Followed the track to the right of the fountain eastwards, which rises gradually curving around the small hill to the south of Semprevina. To the north side of this, I cut across the gully where a red mark was painted on a tree. Continued roughly NW on this other side of the gully (previously climbed Malaina on other side) then zigzagged up through beech forest, occasionally seeing more red markings. On the shoulder of the summit to the SE identified the path going to La Guardiola, for a future excursion, then climbed the last bit to the top of Semprevina. From here I headed westwards to the sella before Malaina, looked at the abyss, which is in a large depression in the saddle, then headed back down. Instead of taking the path back, I cut down in a rough beeline directly to the car. Relatively steep and loose underfoot but more direct. Welcome refreshing water straight from the tap at the fountain/basin.