Camping Scala San Giorgio offers affordable tent camping in the countryside with bathroom facilities. It's unclear if campers and vans can fit due to space restrictions among the trees. The site includes a restaurant and pizzeria. Access is via the road from Osini to the San Giorgio staircase.
Camping Scala San Giorgio and Tree of Life are the same place. We stayed for two nights, paying 10 euros for 2 adults and a minivan. It is quiet and beautiful, serving as a great starting point for many hikes. There's also a nice restaurant.
Camping in a quiet forest area is great for nature lovers. The hotel restaurant serves good food and has friendly staff. The restrooms are clean, but there's no phone signal in the camping spots; however, Wi-Fi is available at the reception. It is worth a visit.