Why is extreme ‘frontier travel’ booming despite the risks?

Frontier tourism is an exclusive and extreme form of adventure travel. — OceanGate Expeditions/AP

THE horror of the Titan submersible tragedy raises questions as to why people engage in risky tourism activities in remote locations, and whether there should be more restrictions to what adrenaline-seeking tourists can do.

This type of travel, known as “frontier tourism”, is becoming big business.