Spa Pool

From the lower carpark, a steep 400-metre descent takes you to the gorge floor. Spa Pool lies farther along the watercourse, past a short ladder and a scramble over smooth rock. There’s no formal trail for that final section, and it’s best left alone when the rock is wet. The lower pool is a good stopping point if you don’t want the extra scramble.

Never enter a gorge if rain is in the area, and leave immediately if rain starts: flash floods can rise quickly here. Gorge water can be extremely cold, especially from April through September. Don’t jump or dive into Spa Pool; its safe depth hasn’t been established.

The striped walls are a close-up of the Pilbara’s old rock story. More than 2.5 billion years ago, iron-rich fine sediment settled on an ancient seabed. Burial and pressure turned those layers to rock; later compression folded and fractured them, and flowing water cut the gorges. Across the area you’ll see banded iron formation, dolomite and soft purple-pink shale.

From the pool, the narrow waterfall and dark water sit inside a frame of curved, folded rock. Before sunrise, directional light can pick out the layers while the pool stays much darker than the sunlit walls, so the scene has a big contrast range. You need to make the same scramble to get that close view.

Karijini is the Banyjima name for the Hamersley Range. The park was established in 1969 around Dales Gorge, later expanded to include Hamersley Gorge, and renamed Karijini in 1991 to recognize Aboriginal history and continuing Traditional Owner connection. The park is on the traditional lands of Banyjima, Kurrama and Innawonga people.

Hamersley Gorge is in the park’s remote north-west, about a 90-minute drive from Tom Price on a route with both sealed and unsealed sections. Road conditions and vehicle guidance can vary, so check current advice before setting out. There’s a toilet and a separate constructed lookout by the lower parking area; both are back at the start of the gorge visit.