Son Doong 360, the world’s largest cave

Combining important story with innovative virtual reality storytelling, the world’s largest cave has been immortalized in an interactive 360° story.

With support from the National Geographic Global Exploration Fund and numerous sponsors, IVAR-founder Martin Edström and his team consisting of members of IVAR mounted a successful expedition to Hang Son Doong in Vietnam in early 2015.

You can experience the full 360-story here on National Geographics webpage.

Several IVAR members were part of this expedition and since the publishing of the story IVAR has converted the 360-webstory to a VR-experience for Oculus GearVR.


National Geographic



Interactive 360 and VR.

Team members

Martin Edström – Photographer and journalist

Fredrik Edström – Communications

Alfred Runow – Logistics