Hang Sung Sot

Halong Bay

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 surprisingly, some guides refer to it as the ‘Cock Rock’.

Lonely Planet's must-see attractions

Nearby Halong Bay attractions

1. Hang Trong

1.09 MILES

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…

2. Lan Ha Bay

5.69 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…

3. Hang Dau Go

6.47 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…

4. Hang Thien Cung

6.65 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.

5. Hospital Cave

6.79 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…

6. Trung Trang Cave

7.08 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. Cat Ba National Park

7.33 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…

8. Beach No 1

7.97 MILES

This wide and sandy beach offers good sunset strolls and views of the cruise ships and lighthouse. It's accessible behind the massive Sunworld complex.