From Finca Las Nuevas, do NOT follow Google Maps unless you want to drive up through riverbeds and steep curves, with your navigation failing.
Otherwise…
Unpaved, easy-to-ride route;
Drive towards the church, just before the church turn left at the sign to Almogía. Keep going straight on, you’ll pass a bunch of cork oaks. The road becomes paved as you pass some houses and a red Dutch bike is on the left. At the t-junction with the main road, turn left.
You drive through 2 villages and from there follow signs to El Torcal. At El Torcal, you can usually drive all the way up and park there.
Or
Via the paved road;
Go straight ahead at the ramp, first road on the right. That’s just before the S-curve. At the end, turn right. The dirt road turns into a paved road. At the junction with the main road turn right towards Valle de Abdalajis (A343). From there straight on and eventually follows sign El Torcal.
Via the motorway
If you prefer not to take too much of a shortcut. Then drive to Cártama and take the A357 towards Málaga, then the A7 towards Almeria. Follow this motorway for 10 km and then take the exit for the A45 Córdoba/Granada. Take exit Casaermeja and follow the signs towards El Torcal
Have fun!