The Kalbarri Skywalk opened in August 2020 with two cantilevered platforms that project 25 metres and 17 metres beyond the gorge rim, their steel frames and glass floors suspended 100 metres above the Murchison River. The river has cut through Tumblagooda sandstone for 400 million years, exposing rust-red strata that shift through tangerine and violet as the sun drops toward the Indian Ocean 30 kilometres west. The national park that contains the skywalk covers 183,000 hectares of coastal heath and inland gorge country, traditional land of the Nanda people, who have read these stone faces and seasonal water flows for tens of thousands of years. The kalbarri skywalk sundowner and stargazing tour takes advantage of the park's Bortle 2 sky rating, a measure of darkness rare along Australia's populated coast. On a moonless night the Milky Way core stretches vertically from the southern horizon, and the Magellanic Clouds appear as diffuse smudges low in the south. Summer constellations include Scorpius, Sagittarius, and the Southern Cross, while winter evenings bring Orion overhead. Guided observatory experiences use portable telescopes to resolve Saturn's rings, Jupiter's Galilean moons, and deep-sky objects like Omega Centauri, a globular cluster of 10 million stars visible to the naked eye as a faint patch. Cultural storytelling sessions incorporate Nanda celestial navigation traditions, which treat the dark nebulae between stars as meaningful shapes rather than voids. The Emu in the Sky, formed by dust lanes in the Milky Way rather than bright stars, guided seasonal movements and signalled when emu eggs were ready to collect. These narrative layers align with the geological depth visible from the platforms: the Tumblagooda formation beneath the skywalk records an ancient river delta, its cross-bedded sandstone preserving ripple marks and trace fossils from arthropods that crawled through Silurian mud 450 million years ago. Sunset sessions coincide with the golden hour, when horizontal light saturates the gorge walls and the river below reflects bands of amber and crimson. The skywalk's glass panels create the optical effect of standing in midair, a perspective that shifts as the light fades and the steel frame cools audibly in the evening air. The kalbarri skywalk sundowner and stargazing tour tours extend beyond the standard daylight visit window, which closes at 18:00, offering access during the transition from civil twilight through astronomical darkness when stars of sixth magnitude become visible and the zodiacal light may appear as a faint pyramid along the ecliptic.