There were silly scenes there when I drove past about 7pm last night. Car park closed at the main road (full) and people parked all the main road for a good mile or more (despite the narrow road/nonovertaking lines). A lot busier than the normal boy racer/yoofs having a smoke car park scenes.
If you were planning a summer evenings bouldering there (despite greasy coarse sharp grit 😃) might be worth bearing that in mind.