The la Zarza Forestry House Trail, passing through La Iruela and Santo Tomé

It goes in two directions
FROM THE PUERTO DE LAS PALOMAS PASS TO LAS ERICAS

The trail starts out along the mountain ridge, where you can view the pre-Park area with olive groves on one side and La Loma in the background, while the Guadalquivir river valley lies on the other side, inside the Nature Park. Follow the trail until you come to the Fuente de la Zarza Forestry House, which affords a panoramic view of the valley and several peaks (El Yelmo, Banderillas and Cabeza del Tejo). Continue on down a steep trail that is a former bridle path, which passes by the Barranco de la Tuerta, Arroyo del Sauco and Los Huertezuelas and ends at the A-319 road.
Along the way you'll find a good representation of forests of pine, oaks, gall oaks and even a few maples. The undergrowth includes lentisco, rosemary, rock roses and thyme and riparian species, such as willows and poplars, grow in the vicinity of the stream. There are also some interesting formations of terebinths in the rocky outcrops that dress the trail in bright colours in autumn.
You are likely to spot griffon vultures wheeling overhead as soon start off on the trail. On the way down, you can come across wild boar in the ravine and close to the stream, and mountain goats on the rocky outcrops. In the rest of the forest you can also spot hoofed animals: red deer and fallow deer.

FROM LAS ERICAS TO PUERTO DE LAS PALOMAS PASS

Starting at Las Ericas, on the A-319 road, go uphill past Los Huertezuelos, the Arroyo del Sauco stream and the Barranco de la Tuerta until you arrive at the Fuente de la Zarza forestry House. The trail is a steep former bridle path that linked the mountain forestry houses in the past. When you have reached a certain height, you'll have a panoramic view of the valley and several peaks (El Yelmo, Banderillas and Cabeza del Tejo). As you walk along the first section, you'll enjoy the sound of water and cool air from the stream, which becomes a veritable botanical garden on this slope in the summer.
When you pass the Fuente de la Zarza forestry house, carry on along a trail that runs along the mountain ridge, where you can view the pre-Park area with olive groves on one side and La Loma in the background, while the Guadalquivir river valley lies on the other side, inside the Nature Park.
Along the way you'll find a good representation of forests of pine, oaks, gall oaks and even a few maples. The undergrowth includes lentisco, rosemary, rock roses and thyme and riparian species, such as willows and poplars, grow in the vicinity of the stream. There are also some interesting formations of terebinths in the rocky outcrops that dress the trail in bright colours in autumn.
You are likely to spot wild boar close to the stream and mountain goats on the rocky outcrops. In the rest of the forest you can also spot hoofed animals: red deer and fallow deer, and griffon vultures towards the end of the trail.