In a landmark television event, the majestic Son Doong Cave - the planet’s largest subterranean wonder, has been featured in a dedicated report on the prestigious American news programme, 60 Minutes (CBS).

Broadcast at 19:00 EST on Sunday, 29 March 2026, the segment has been hailed by CBS producers as one of the most visually arresting features ever aired on the network. For international travellers and adventure enthusiasts, the broadcast offers a definitive look at a destination that remains the pinnacle of global cave exploration.

A Masterclass in Expedition Filming

The production, filmed between 14 and 17 January 2026, was a monumental logistical undertaking coordinated by Oxalis Adventure. The elite crew included award-winning producers Nicole Young and Jonathan Partridge, veteran correspondent Scott Pelley, and acclaimed conservation photographer Ryan Deboodt.

With a loyal global viewership exceeding 8 million and a digital reach in the hundreds of millions, the feature is expected to provide a significant catalyst for tourism in Phong Nha-Ke Bang National Park, further cementing Son Doong’s status as an icon of natural heritage.

Journey into the Abyss

Led by renowned British cave expert Howard Limbert, who has dedicated over 30 years to surveying more than 500 caves, the expedition showcased the sheer scale of the challenge. To even reach the cave’s entrance, the 53-person team trekked for a day and a half through dense jungle and crossed 20 rivers.

The descent itself is a test of mettle: a 130-metre technical rappel into the darkness of the cave floor. Inside, the cave reveals a world that defies imagination:

• Colossal Scale: Caverns reaching over 200m in height and 150m in width, vast enough to house a 40-storey skyscraper or the Great Pyramid of Giza.
• Internal Rainforests: Two massive 'dolines' (collapsed ceilings) act as skylights, allowing sunlight to penetrate the depths and foster a self-contained jungle ecosystem isolated from the outside world.
• Geological Heritage: Research by geologist Darryl Granger (Purdue University) on sediments dating back 2.5 million years highlights the cave’s ancient origins.

A Legacy of Discovery

First stumbled upon in 1990 by local resident Ho Khanh whilst seeking shelter from a storm, Son Doong was only officially explored in 2009 by international experts. Today, it remains a frontier of mystery. As explorer Peter MacNab noted during the broadcast, the journey is one of constant wonder, where every step may reveal a chamber never before seen by human eyes.

Sustainable Exploration

Currently, access to Son Doong is strictly regulated to ensure the preservation of its delicate biodiversity. The CBS 60 Minutes feature serves as a poignant reminder of the importance of protecting such rare natural wonders while sharing their beauty with the world through a lens of science and history.

At a Glance: Son Doong Cave

• Location: Phong Nha-Ke Bang National Park (UNESCO World Heritage Site).
• Record: Largest natural cave in the world.
• Dimensions: Nearly 9km long; some sections are over 200m high.
• Key Features: Underground rivers, massive stalagmites, and internal "skylight" jungles.

Expedition Duration: Typically, 4 days and 3 nights for a full crossing.