Starting from the Tre­zona Camp­ground off Brachi­na Gorge Road, Ikara-Flinders Ranges National Park, this walk takes you on a circuit around Ikara-Flinders Ranges National Park via the Tre­zona Hike. One of South Australia's most popular tourist destinations, Ikara-Flinders Ranges National Park is home to ancient rugged moun­tain ranges, dramatic gorges, peace­ful tree-lined creeks and abundant wildlife. This walk explores the Trezona Formation, which contains evidence of some of the earliest known life forms on Earth, dating from the Ediacaran Period. The walk initially follows Enorama Creek across the flat open country adjacent to the Trezona Range, which was heavily grazed when the area was still a pastoral estate, then descends into the creek bed to the Golden Spike, a significant geological site marked by a Geosite post. After crossing Enorama Creek, the walk passes between the Elatina and Trezona formations, then crosses Brachi­na Gorge Road and Etina Creek before reaching Middlesight Water Hut, used by walkers of the Heysen Trail. From there, the walk follows Etina Creek across the Trezona Formation, then crosses Brachi­na Gorge Road again before returning to the campground. The walk begins from the Tre­zona Campground, which is suitable for tents, car­a­vans, camper vans and camper trailers and has toilets, picnic tables and fire pits. This walk consists of wide and narrow, gently undulating walking trails and fire tracks, with uneven natural surfaces, compacted natural surfaces and creek crossings, suitable for average fitness levels. Let us begin by acknowledging the Traditional Custodians of the land on which we travel today, and pay our respects to their Elders past and present.