Hang Trinh Nu (Virgin Cave) is also known as Mid Gate cave. According to local lore, an old couple lived here long ago. The husband made a living fishing around the bay. They were very poor. They had only one daughter. She grew up to be a beautiful young woman, so beautiful that people from all around knew of her. There were many suitors and her reputation reached the local mandarin. The mandarin immediately sent his soldier to her home to capture her. She was forced to marry the old mandarin.

Hang Dau Go (Wooden Stakes Cave) is one of the most beautiful cave at Ha Long. The name, Dau Go or Giau Go, has direct ties to the history of Vietnam. According to the locals, while preparing for the Mongolian attacks in 1288, general Tran Hung Dao, sent a convoy to this area to cut wood from this region. Wooden stakes were then fashioned from the wood and hidden in Dau Go cave.

Upon arriving in Ha Long city, the visitor will be driving along 'Bai Chay' or scorched beach. The sand on this stretch of beach is dark. And judging by the name the visitors may mistakenly think that this is due to the dry climate or lack of wind in this area.

Sung Sot Cave is on the same island with Trinh Nu cave. The path to Sung Sot is quite steep and is lined with shady trees. The cave has 2 chambers.