Exploring Son Doong Cave

What is the primary goal of Martin Edstrom's expedition to Vietnam?

• To explore the local culture

• To climb the highest mountain in Vietnam

• To capture immersive images of Son Doong Cave

• To study the wildlife in Vietnam

What makes Son Doong Cave unique in terms of its size?

• It is the deepest cave in the world

• It has chambers large enough to fit a city block of skyscrapers

• It is the longest cave in the world

• It has the most complex cave system

What are dolines, as mentioned in the context of Son Doong Cave?

• Cave paintings

• Stalactite formations

• Collapsed sinkholes

• Underground rivers

What feeling does Martin Edstrom want to convey through his work in Son Doong Cave?

• The challenge of extreme sports

• The thrill of adventure

• The importance of preserving natural heritage

• The excitement of discovering new species

What challenge did the team face while trying to illuminate Son Doong Cave?

• Dangerous wildlife

• Insufficient lighting compared to the cave's size

• Lack of proper equipment

• Unpredictable weather conditions