Sitting 35km west of Coonabarabran, this 232-sq-km park has spectacular granite domes, ample bushwalking trails, plentiful wildlife and explosive wild-flower displays during spring. It's one of NSW's most beautiful parks, although a bushfire swept through in 2013; some areas will take years to fully recover.
Park fees are payable at the NPWS visitor centre; there are excellent camp sites nearby at Camp Blackman (adult/child from $5/3). Walking tracks include the peerless 12.5km Breadknife and Grand High Tops Walk.