Campers are advised to boil all water before drinking . There's no pollution as such, but the park has a problem with feral animals. Camping and caravan parks are available at Gloucester, Dungog and Scone. There is a caravan park about 5km before the Gloucester River park entrance on Gloucester River Rd. Walkers should be prepared for sudden changes in weather.
Snow storms can arise in a matter of hours even in summer.
There is a Guest House at the southern end of the park on the road from Dungog. This is where I stayed in October - highly recommended.