Cattai National Park campground
Bookings essential - online via webpage or 1300 072757 or 1300 0PARKS https://www.nationalparks.nsw.gov.au/camping-and-accommodation/campgrounds/cattai-campground
Came here with a whole bunch of families. Good old campsite with access to the Hawkesbury river. Old but still working sufficiently facilities. Including picnic shaded areas, fires allowed in lots of designated spots. Hot n cold water. Bring your own fresh drinking water. About an hour north from Sydney CBD. Lots of space for kids to roam free. Heaps of kangaroos that come up close around dusk. Good basic family all rounder campsite.