Rarely can the word “cavernous” have been used with such justification. In 2009, a group of British cavers attempted the first-ever detailed survey of the Son Doong cave, in Phong Nha-Ke Bang National Park, finally giving up 4.5km in. Their records and photographs showed chambers large enough to swallow up whole city blocks – the largest found so far is over 250m high, and 150m wide. Subsequent investigations have added another 2km to the cave’s charted length, and shown the presence of 70m-long stalactites, gigantic shards of crystal and grapefruit-sized calcite pearls. The cave is highly remote and, at the time of writing, had not yet been opened to the public, but it seems almost certain to become one of Vietnam’s most alluring sights.

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Vietnam features

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Phong Nha-Ke Bang National Park: Vietnam's last paradise?

Phong Nha-Ke Bang National Park: Vietnam's last paradise?

Planning a trip to Vietnam and keen to explore some of its most spectacular scenery? A little north of the 17th parallel – the demarcation where Vietnam was o…

18 Apr 2017 • Rachel Mills insert_drive_file Article
7 places to get off the tourist trail in Vietnam

7 places to get off the tourist trail in Vietnam

The verdant limestone stacks of Ha Long Bay and the bustling streets of Hanoi are well established (and essential) stops along Vietnam’s tourist trail. But th…

04 Apr 2017 • Rachel Mills insert_drive_file Article
The 10 most beautiful places in Vietnam – as voted by you

The 10 most beautiful places in Vietnam – as voted by you

Here at Rough Guides we’ve always known that Vietnam is magical. The gleaming skyscrapers of the country's booming cities have a singular kind of beauty that …

27 Jan 2017 • Rachel Mills camera_alt Gallery
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