Warren National Park is home to some of the State’s most majestic karri trees. The 3,131-hectare park is regarded as a prime example of virgin karri forest.
Karri (Eucalyptus diversicolor) grows up to 90m high, making it the tallest tree in Western Australia and one of the tallest in the world. It grows mainly from Nannup to Manjimup, through Pemberton and Northcliffe to Denmark. Some of these forest giants in Warren National Park are more than 200 years old.
If you can tear your eyes away from the grandeur of the karri trees, you’ll notice that the undergrowth is just as beautiful. River banksias, peppermints and Warren River cedar line the riverbanks while the pretty red coral vine and white clematis clamber over tree trunks and fallen logs.
The cool, moist environment near the river provides a dazzling display of fungi in the wetter months of the year. Brightly coloured fungi of all shapes and sizes mingle with mosses and lichens on fallen logs and among the leaf litter.
The 12km Heartbreak Trail descends into the Warren River valley, following the river for a while before climbing back up the karri-clad slopes.
This steep track was built by hand to clear a path down to the river for fire fighters and the name reflects the hardship of the job. The rapids of Heartbreak Crossing and the Warren Lookout are great stopping places along the trail. Tune into 88FM for more information on the area while at Warren Lookout.
Please be aware that the Heartbreak Trail is a one-way, gravel road that is very steep in places. It is not suitable for buses or caravans.
Warren National Park is a feature on the Karri Forest Explorer which is an 86km drive trail that shows off the best the karri forest has to offer
Park entry and camping fees apply.
Warren National Park is accessible via the unsealed Old Vasse Road. The Marianne North Tree and the Dave Evans Bicentennial Tree are accessible to all vehicles along this road. The Heartbreak Trail is steep and not suitable for caravans or buses.
We recognise and acknowledge South West Boojarah people as the traditional custodians of Warren National Park.