80 km north-east of Perth via the Toodyay Road. Turn left into Morangup Road, and left onto Quarry Road. From summer to winter, from north to south, and from high outcrops to deep river and stream valleys, the forests of Avon Valley National Park are constantly changing. The Avon River flows in winter and spring when the river churns over spectacular rapids. During summer and autumn the river diminishes to a series of pools in a bed of granite boulders and tea-tree thickets. The park features forests and granite outcrops, panoramic views over the Avon Valley and the chance to see a wide variety of birds and wildlife. Avon Valley National Park is open from 8am to 4pm every day. Gates are locked outside of these times. The roads within the park are all unsealed. The nearest telephone, petrol and food outlets are at Gidgegannup or Toodyay, 30 kilometres from the park. There are some picnic facilities and basic camping sites. The small amount of development means much of the park has wilderness qualities. The best time to visit is during the cooler months.