Lake St Clair to Derwent Bridge — Lyell Highway Backcountry Spur via Travellers Rest
Glacial wilderness behind the highway's back.
Most travellers blow through Derwent Bridge on the Lyell Highway without stopping. The ones who do stop — and then turn onto the forestry spurs threading west toward Lake St Clair’s upper reaches — find a completely different Tasmania. Dirt tracks push through mature myrtle and pencil pine stands, crossing small unnamed creeks on rough timber bridges before opening onto gravel benches above the lake’s northern arm. The Travellers Rest area marks a key decision point: continue northwest along the fire access network or drop toward the lakeshore where Cuvier Valley’s glacial basin comes into view. Expect soft gravel with embedded rock, waterlogged verges after rain, and log debris that gets moved around seasonally by Parks crews.
A high-clearance 4WD is required; low range will be used on creek descents. Do not attempt after heavy rain — the clay-over-dolerite sections turn greasy fast and recovery is a long haul from anywhere. Autumn brings stable weather and colour in the fagus; summer is accessible but can be wet. No permits for forestry spur access, but National Park entry fees apply near the lake boundary. Carry all water and fuel from Derwent Bridge. Cell service is essentially nonexistent. What you get is one of central Tasmania’s most glacially carved lakescapes viewed from the dirt, completely alone.
Trail Specs
| Difficulty | Difficult |
|---|---|
| Trail Type | Backcountry, Technical 4x4 |
| Surface | Dirt, Gravel, Mixed |
| Features | Camping, Remote, Scenic, Water Crossings |
| Length (miles) | 28 mi / 45 km |
| Duration | 1-2 days |
| Max elevation (ft) | 2950 ft |
| Best season | February-May |
| Minimum vehicle | High-clearance 4WD |
| Nearest town | Derwent Bridge, Tasmania |
| Land manager | Tasmania Parks and Wildlife Service / Forestry Tasmania |
| Permit required | Yes |
| Cell service | None |
| Water crossings | Yes |
| Dispersed camping | Yes |
| Official sources | parks.tas.gov.au |
| Start coordinates | |
| End coordinates | |
| Copy both for Google Maps directionsClick to copy the directions URL · or open it directly in a new tab | |
| Find on Google | Search on Google → |
Location
Trail Conditions
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Frequently asked questions
Can a lifted Hilux or Patrol handle this, or do you need a dedicated build?
A stock high-clearance 4WD like a 70 Series LandCruiser or Patrol will manage, but low-range is non-negotiable and a snorkel is strongly advised given the water crossings. A lift and all-terrain tyres make a real difference on the loose, rutted sections near Travellers Rest. Soft-roaders and AWD wagons don't belong here.
When is this trail actually passable — what months are realistic?
February through May is the sweet spot: snow has cleared from the central plateau and the ground is firmer after summer. Winter brings snow above 800m and can close access entirely; spring snowmelt turns the fire trails into soup. Don't chance it outside the best-season window without current local intel.
Do you need a permit to drive this, and is there a fee?
Yes — you need a valid Tasmanian National Parks Pass to access the Cradle Mountain–Lake St Clair National Park section; day passes and annual passes are available through Parks Tasmania. The forestry spur sections fall under Forestry Tasmania jurisdiction, which has its own access conditions — check current timber harvesting closures before you go as they can change without much notice.
What's the hardest section and what actually makes it gnarly?
The roughest terrain sits on the spur tracks branching west off the main corridor near Travellers Rest — expect deep wheel ruts, off-camber sidling on loose dolerite scree, and creek crossings with no formed banks. The crossings themselves aren't necessarily deep, but the entry and exit angles are abrupt and the rock is slippery. One bad line here means a recovery situation with no one around to help.
There's zero cell service — what's the nearest fuel and how far out are you if something goes wrong?
Derwent Bridge is the last fuel stop and it's a small roadhouse, so fill up completely before you leave the highway — the 45km loop has no resupply. Carry a PLB or satellite communicator; the nearest meaningful emergency response is out of Hobart or Queenstown, which is a long way when you're deep in the central plateau with a broken diff.
Trail track
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