The Pinnacle over Halls Gap via the Grand Canyon and the Silent Street chasm

The line through Grampians (Gariwerd), Victoria, Australia - waypoints, elevation and the day-by-day shape of the walk.
Autumn-spring
Extreme summer heat and sun - carry ample water; parks may close trails on extreme-fire/heat days
Best Mar-Nov; hot and fire-prone in summer. Confirm.
Sandstone chasms (Silent Street), stairs and a cliff-edge lookout
Non-technical walking/hiking; confirm any exposed or scrambly sections locally
Marked/waymarked route; navigation generally straightforward - carry a map and confirm locally
Suitable for reasonably fit hikers; not wheelchair accessible - confirm specifics
Very popular
Shorter route from the Pinnacle car park
Wonderland / Halls Gap
Out-and-back/loop - no shuttle needed
Day route - none needed
Day-hike kit, water, sun/rain protection, sturdy footwear; coverage varies
Services in Halls Gap; limited or none on the trail
Not required; self-guided
Grampians NP; busy Wonderland car park
Permits and operators change - confirm before booking.
Cliff-edge lookout (unfenced sections), heat, slippery chasms
Retrace the route to exit; dial local emergency services; carry a means of calling for help where remote
This profile is desk research, compiled from public sources - not a first-hand trail report. Coordinates are approximate.