There are hotels, minbaks ande a camp ground in the park-- though not so close to the climbs and at the other entrance (not that they are really far). You can camp by the parking lot near the right (small) entrance, and could probably get awway with climbing right near the sport routes, as it's way off the beaten track (possibly near the ridges, too, though I've tended to climb them on the weekends when many groups might come across you, and you'd be more visible). There used to be a shelter in the park, too. . . but not so near the climbing.
"If you can't do something well, you might as well learn to enjoy doing it poorly."
-- from a de-motivational poster, but I find it oddly liberating