Trail summary
Hike overview
This short walk leads to the Natural Bridge, an ancient lava flow where the roof has collapsed which you can enter and explore. At the end of the walk, you will come to a section where the roof of the lava flow remains intact, forming a cavern that you can explore. There's a good chance you'll spot koalas and kangaroos on the walk if you keep your eyes peeled. Carry a torch and wear appropriate shoes as the cavern is dark and slippery. This walk can also be commenced after driving along the Natural Bridge Road to the Natural Bridge carpark. A 200m walk from the carpark leads to the Natural Bridge cavern.
All walks start from the picnic area or the Lake Surprise Lookout carpark. Ensure you have good shoes for the uneven terrain. A hat, water and sunscreen are essential. You may encounter wildlife including snakes on these walks, as this is where they live. They are protected here. If you see a snake on the track leave it alone and wait for it to leave.
Camping and picnicking
The Picnic Area offers a tranquil setting for day visitors Facilities include picnic tables, barbecues and toilets. The campground is near Lake Surprise and adjacent to the picnic area. Sites are in protected hollows between rocky ridges formed by ancient lava flows. Toilets, water (untreated, natural supply), hot showers and 10 shared fireplaces are provided. Most campsites can accommodate up to six people with provision for one vehicle.
Map and GPX file
Max elevation: 164 m
Min elevation: 109 m
Total climbing: 133 m
Total descent: -133 m
Getting there
Closest towns to this walk: Tarragal, Lake Condah, Heywood, Macarthur, Mortlake
Budj Bim National Park is located approximately 300km west of Melbourne. Macarthur is the nearest town to the Visitor Area and Campground. Hamilton is the nearest city to this end of the park. The road to Budj Bim National Park is sealed all the way to the visitor picnic ground. There is a short gravel road from there to the campground, about 200 metres. It is suitable for 2WD.
Track grade
Grade 3 (Moderate) - Walks for Most Fitness Levels: Grade 3 on the AWTGS represents moderate walking tracks. These are ideal for walkers with some fitness who are comfortable with some hills and uneven terrain. While suitable for most ages, some bushwalking experience is recommended to ensure a safe and enjoyable experience. Tracks may have short, steep hill sections, a rough surface, and many steps. The total distance of a Grade 3 walk can be up to 20 kilometers.
About the region
Budj Bim is a long dormant volcano. Budj Bim is the source of the Tyrendarra lava flow which extends over 50 kilometres to the southwest. It is central to the history of the Gunditjmara people. Budj Bim National Park is Victoria's first co-managed national park. The park is managed by Gunditjmara Traditional Owners and Parks Victoria.
The park's tranquil crater lake and pleasant bushland surrounds make it a pleasant place for picnicking, camping and bushwalking. Nature trails follow the old crater rim.
The Budj Bim Cultural Landscape has formally been recognised on the UNESCO World Heritage List and is the only Australian World Heritage property listed exclusively for its Aboriginal cultural values. The Budj Bim Cultural Landscape features the earliest living example of aquaculture in the world, with a history of eel farming dating back over 6,000 years.
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Gear to consider
What you carry in your pack depends on factors like weather, terrain, time of year, the type of adventure, and your personal preferences. Unsure what gear to bring? My free planning, food, and packing checklists offer a great starting point, covering essentials for day hikes, overnight trips, and multi-day adventures. Use them as a guide to customise your kit to suit your needs, always prioritising safety above all else.
Explore safe
Plan ahead and hike safely! Always carry enough water and pack clothing layers to adapt to changing conditions. Bring essential safety gear, including a torch, a Personal Locator Beacon (PLB), and a reliable communication device. Check official government sources for trail updates, temporary closures, and access requirements. Before heading out, review local weather and bushfire advice, including warnings and planned burns. Most importantly, let someone know your plans before you go. Being prepared ensures a safer and more enjoyable hike! Stay Safe, Explore More, and Always #ExploreSafe
Acknowledgement of Country
Trail Hiking Australia acknowledges the Traditional Owners of the lands on which we hike and pay respects to their Elders, past and present, and we acknowledge the First Nations people of other communities who may be here today.