Uluru is a monolith -- a single piece of rock, or more precisely, a giant boulder that extends roughly 2.4 kilometers underground while rising 348 meters above the flat desert plain. At the surface, it measures 3.6 by 2.4 kilometers with a circumference of 9.4 kilometers. Some claim it is the world's largest monolith; others point to Mount Augustus in Western Australia. The debate is academic when you stand at its base and feel the sheer mass of the thing pressing against the sky. Kata Tjuta, meaning "many heads" in Pitjantjatjara, is made up of conglomerate rock domes dating back 500 million years. Geologists believe it may once have been a single monolith far surpassing Uluru in size before erosion separated it into the rounded forms visible today.

Climbing Uluru is illegal, a decision that reflects Anangu wishes and was formalized after a unanimous board decision in 2017. But the walks around and between the formations are among the finest in Australia. The Uluru base walk covers 9.8 kilometers and takes three to four hours; walk clockwise and the crowds thin after the first few kilometers. The shorter Mala Walk leads two kilometers to the striking Kantju Gorge, while the Kuniya Walk is an easy one-kilometer path to Mutitjulu Waterhole, where rock art and Tjukurpa stories -- the Anangu creation narratives -- come alive in the landscape. At Kata Tjuta, the Valley of the Winds walk is magnificent: 7.4 kilometers through the gaps between the domes, with two lookout points and a counter-clockwise loop that takes about three hours. Start early; the track beyond the first lookout closes at 11 AM if temperatures are forecast above 36 degrees.

Three distinct locations define a visit: Ayers Rock Airport, the national park itself, and the resort town of Yulara, which provides all accommodation and services. The park closes at night and has no camping. From Alice Springs, the drive takes four to five hours along sealed highways, with fuel available at roadhouses along the Stuart and Lasseter Highways. Watch for camels, cattle, dingoes, and kangaroos, especially after dark -- most rental agreements prohibit night driving on these roads for good reason. Tour operators run trips ranging from single-day excursions to five-day circuits that include Kings Canyon and the MacDonnell Ranges. If you arrive without a car, the Uluru Express shuttle offers unlimited park access from Yulara hotels. Park passes cost $38 for a three-day adult entry, with children under 18 admitted free.

Climate dictates the experience. December and January bring temperatures exceeding 45 degrees Celsius, occasionally tipping past 50, and sections of the park may close for safety. July and August nights can plunge to minus 10, with daytime highs sometimes barely reaching 15. April and September offer the most temperate conditions, warm enough to break a sweat at midday but manageable for walking. The park protects hundreds of plant species, 24 native mammal species, and 72 reptile species, and off-road access is prohibited to keep them safe. At night, the absence of light pollution turns the sky into one of the most spectacular displays of stars in the Southern Hemisphere. Several operators offer guided stargazing sessions, and Anangu guides lead cultural tours that connect the constellations to Dreamtime stories that have been told in this landscape since long before the rock had a European name.