The meeting point, and off-road trip to the farm, is:
https://www.google.es/maps/@37.3194917,-4.0963935,16z
The activity would start at kilometer 28.900, Montefrío - Algarinejo highway, at 12 o'clock, where I would take charge of collecting visitors, 4 people maximum, in my vehicle, although if they came in other SUVs we could make more groups numerous.
The end of the visit would be at 2:00 p.m.