Son Doong - the world's largest cave (Vietnam)

Son Doong cave (Vietnamese: Hang Sơn Đoòng) is a cave in Phong Nha - Ke Bang National Park, Bo Trach District, Quang Binh Province, Vietnam. The biggest chamber of Son Doong is over five kilometers in length, 200 meters high and 150 meters wide. With these dimensions, Son Doong overtakes Deer Cave in Malaysia to take the title of the world's largest cave.

Photo by Carsten Peter

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Vietnam Travel Guide Book

Welcome to a world where the colours are more vivid, where the landscapes are bolder, the coastline more dramatic, where the history is more compelling, where the tastes are more divine, where life is lived in the fast lane. This world is Vietnam, the latest Asian dragon to awake from its slumber.