Cuckoo Rock is an iconic high ball boulder surrounded by countless other boulders, of which the larger ones each offer a few routes. Wide variety of grades, from V-Basic to very hard.
Park at Norsworth Bridge Car Park and follow the trail on the right (as you face the car park, back to the road/entrance) for quite awhile (20-25 min approach). You should pass by multiple stone house ruins and rock hop across a couple small streams before eventually arriving at some boggy moorland from which the distinct Cuckoo Rock can be seen surrounded by many other boulders of various sizes