Knox Gorge Trail

Overview

This is Karijini at its rawest: a short, serious gorge walk with outsized payoff. The Knox Gorge Trail is a 2 km/1.2 mi return out‑and‑back that typically takes 2–3 hours. It’s Class 5—expect very rough surfaces, steep sections, and sustained rock scrambling. If you’re not comfortable using hands and feet, this isn’t your gorge.

What You’ll See

From the lookout, you’ll drop into a deep chasm carved through rock layers over 2.5 billion years old. Once on the floor, the gorge tightens into towering, banded walls with seasonal trickles, small waterfalls, and natural pools. Knox intersects the broader Wittenoom system, and the geology reads like a vertical timeline—bring curiosity as much as a camera.

Trail Experience

The descent is steep and can be shaley underfoot. After the drop, it’s boulder‑hopping and slabby scrambles along the gorge floor to your turnaround. In wetter months, expect cold pools and a few wet feet moments; in drier spells, it’s more rock than water. Directional signage is limited—treat this as an adventurous route rather than a manicured track.

Best Time to Hike

Aim for April–September when temperatures are kinder and light is soft at early morning and late afternoon. Start early; by around mid‑morning in peak season (e.g., September) it can get busy. From November to April, extreme heat is common and can exceed 50°C—plan accordingly or skip it.

Logistics

Park at the Knox Gorge Lookout carpark at the end of Joffre Road, about an hour east of Tom Price. There’s accessible parking and a view platform at the rim, but no toilets—pack a Leave No Trace kit. Park entry fees apply. Drones have restrictions, and glass and alcohol are not permitted in any gorges.

Safety First

Flash floods are a real risk: never enter if it’s raining or forecast nearby, and exit immediately if rain starts. Gorge pools are extremely cold—hypothermia is possible, especially April–September. Do not dive or jump; depths vary and hazards lurk. Stay well back from cliff edges; rock can be loose and unstable. Carry plenty of water (a good rule is around 1 liter per hour per person), sun protection, and sturdy footwear; a PLB/satellite phone is smart in this terrain. Dingoes are present in the park (notably around campgrounds)—don’t feed them and secure food. Note: blue asbestos occurs in nearby Wittenoom Gorge—avoid disturbing or inhaling dust.

A Note on the Technical Route

There is a separate, guided technical traverse linking Knox, Red, and Hancock Gorges that involves slides, a rappel, long cold swims, and a protected traverse. That’s a different undertaking; the route described here is the non‑technical Knox Gorge out‑and‑back.