when driving from Campina Grande, there are 2 options.
Option 1 : Drive PB-140 to Cabaceiras. Just before the town, a signboard will show : Hotel Fazienda Pai Meteus, 25km. The PN-140 has more potholes, than road. It is a very bad road, but you will find a hotel sign board.
Option2: Drive PB-230 from Campina Grande and connect on 412 to Boa VIsta. Pass the first access to Boa Vista. After the second acces (end of Boa Vista), is a Gas Station. 100m after the Gas station is an entry to a concrete factory. Enter there the dirt road, pass the factory, and after approx 10 km you will hit a junction with signboards to the Fazienda (turning right, still 10 km). This street from Campine Grande is much better for the access, but has no Hotel Sign board.
One of he Stoneformation is good to visit at sunset, as they are approx 4km from the Fazienda.
The stone formation can only be visited with a guide. If you ask ahead of time, they can organsie an english speaking person, otherwise it is only in portugies. See webpage : http://www.paimateus.com.br/