My real job often takes me up various mountains in Arizona including South Mountain. It is great for simply being simple. The roads are paved and well maintained, the entire park is clean, there isn't crowds of people or traffic jamming up the road heading up or down. From the ridge, you get a great view of the whole valley. The farmlands to the south and the whole city to the north. There's hiking trails and bicyclists on a regular basis, and plenty of convenience stores at the base of the park. It's fun and easy for any casual activity.