Hang Trong has wide-arched entrances on either side and a ceiling clustered with stalactites. It's so named because when the wind blows through its stalactites, the effect resembles the sound of distant drumbeats.
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Lonely Planet's must-see attractions
4.97 MILES
Lying to the south of Halong Bay off the north-eastern coast of Vietnam, the 300-or-so karst islands and limestone outcrops of Lan Ha are just as…
8.13 MILES
For one of the best views in Vietnam, head to Cannon Fort, where there are astounding panoramas of Cat Ba Island's jungle-clad hills, the harbour and the…
27.19 MILES
The spectacular islands of Bai Tu Long Bay, immediately northeast of Halong Bay, form Bai Tu Long National Park and are every bit as beautiful as their…
27.59 MILES
Du Hang Pagoda was founded three centuries ago. It’s been rebuilt several times, but remains a fine example of traditional Vietnamese architecture and…
7.7 MILES
Cat Ba's beautiful national park is home to 32 species of mammal, including most of the world's 65 remaining golden-headed langurs, the world's most…
6.8 MILES
Hospital Cave served both as a secret bomb-proof hospital during the American War and as a safe house for Viet Cong (VC) leaders. Built between 1963 and…
8.57 MILES
A 10-minute walk southeast from Cat Ba Town, the three Cat Co Cove beaches boast the nearest sand to town, though all are being developed with hotel…
9.1 MILES
Vietnamese and cruise-ship tourists flock to this cable car that spans the Cua Luc inlet, offering dramatic views over Halong Bay. The views are…
Nearby Halong Bay attractions
1.09 MILES
The popular Hang Sung Sot has three vast chambers – in the second there’s a pink-lit rock phallus unsurprisingly regarded as a fertility symbol. Even less…
4.97 MILES
Lying to the south of Halong Bay off the north-eastern coast of Vietnam, the 300-or-so karst islands and limestone outcrops of Lan Ha are just as…
6.8 MILES
Hospital Cave served both as a secret bomb-proof hospital during the American War and as a safe house for Viet Cong (VC) leaders. Built between 1963 and…
7.38 MILES
Within Cat Ba National Park but accessed from a separate roadside entrance 2km north of Hospital Cave, the multi-chambered Trung Trang Cave is fun to…
7.56 MILES
This huge cave consists of three chambers reached via 90 steps. Inside, ceilings soar up to 25m high, while some rather disco-festive lighting illuminates…
7.7 MILES
Cat Ba's beautiful national park is home to 32 species of mammal, including most of the world's 65 remaining golden-headed langurs, the world's most…
7.74 MILES
Part of the same cave system as nearby Hang Dau Go, Hang Thien Cung has ‘cauliflower’ limestone growths as well as stalactites and stalagmites.
8.05 MILES
This monument stands up on imaginatively named Mountain No 1, the hillock opposite the pier in Cat Ba Town.