@Nighthiker
@War247
Though you are not to camp within 1/4 mile of a spring or waterhole
That is certainly the ethical and legal consideration during the drier warmer months, however, I am going to say from recent triplogs and personal experience, there is no shortage of water out there right now. Likewise, with rain last week and potential for more at the end of this week, the water situation only stands to get better. Therefore, I am going to go out on a limb and say you will not be impeding the drinking habits of any wildlife or livestock if you camp right at Hackberry Spring, deer are not going out of there way to drink at the spring when half the washes have water and modest flows. In fact, you will be just fine the law states it is only illegal when that is the only reasonable water source in area, and that is obviously not the case.
water in such a place that wildlife or domestic stock will be denied access to the only reasonably available water."
My vote is for Hackberry as well, however, I would be more worried about a lack of wood for a nice fire. Alternatively, you might want to check out camping near Bluff Springs and taking the natural looping option back via the Dutchman near Crystal Springs, several good spots along there as well, you would be looking at a 9-10 mile weekend and Barks Canyon will be a treat for most new hikers, although, Bluff Springs Trail certainly has a higher difficulty level then First Water area...