Beneath the Swartberg mountains lies a prehistoric labyrinth of limestone and mystery

Countries & Cities · Published 30 September 2026 Swipe more like this →

In short: Located near Oudtshoorn, South Africa, the Cango Caves are a massive subterranean network carved into Precambrian limestone. While visitors explore only a fraction of the tunnels, the system holds ancient artifacts, massive chambers, and legendary tales of explorers who once spent over a day searching for the cave's true end.

The Cango Caves have served as a human site since the Middle and Later Stone Ages, evidenced by prehistoric paintings and artifacts. While local farmer Jacobus Van Zyl is credited with their modern rediscovery in 1780, the site's true scale remained elusive for centuries. Van Zyl famously descended into a chamber now named in his honor, which spans the length of a football field. By 1829, the caves were already drawing scientific interest, with Dr. Andrew Smith visiting to study their unique geological features.

Exploration of the system has been a slow, incremental process. In 1898, the first official guide, Johnny van Wassenaer, reportedly spent 29 hours navigating the depths, claiming to reach a point 25 kilometers from the entrance. Modern surveys have since revealed a complex, multi-stage structure. Cango I, mapped in the mid-20th century, consists of a relatively linear path. Subsequent discoveries, including Cango II in 1972 and Cango III in 1975, expanded the known network significantly through the draining of underwater passages and the widening of obstructed crawlways.

Today, the caves are managed by the municipality of Oudtshoorn, with legal oversight rooted in the 1999 Cango Caves Ordinance. Visitors can choose between a standard tour or an adventure route, the latter of which requires navigating passages as narrow as 15 centimeters. Despite centuries of exploration, the caves continue to yield new secrets, with ongoing discoveries supporting the vast, interconnected nature of the system that early explorers like Van Wassenaer first dared to map.

General information, not professional advice. Spotted an error? Flag the card or see corrections and complaints.

Intellect Plus is a visual educational discovery platform for exploring fascinating facts and ideas. Brain Food, Not Brain Rot. What is Intellect Plus?

Related

• Ethiopia's Sof Omar Caves: A Labyrinth Carved by the Relentless Web River
• Why South Africa's limestone caves hold the world's largest collection of human ancestral remains.
• How a Belgian river carved a massive underground cathedral through solid limestone hills
• The hidden dinosaur tracks rewriting the history of southern Africa
• The Karoo is a vast, ancient, and arid landscape that hides a prehistoric world.
• Bondi Beach: From Indigenous ancestral land to a global cultural and sporting icon
• The Chicxulub Crater Is the Only Impact Site Linked to a Global Mass Extinction
• The Big Hole in South Africa remains the world's largest hand-excavated diamond mine.
• The cobalt blue waters of Zimbabwe's Chinhoyi Caves hide a dark, violent history
• Why the deadliest year in BASE jumping history is being called the killing season
• The term conure is a bird-keeping label, not a scientific classification of parrots.
• Deep beneath the French countryside lies a subterranean forest of towering stone giants.

More in Other terrestrial features · More in Countries & Cities · Latest · A–Z · All topics