Thien Canh Son is a relatively pristine cave located in Bai Tu Long Bay within the Cong Do Nature Reserve. The cave is renowned for its unique natural beauty and picturesque landscapes, attracting thousands of visitors to Bai Tu Long Bay.

Inside the cave, visitors are impressed by the magical beauty of the stalagmites and stalactites with unique shapes formed over millions of years. Although smaller in size compared to Sung Sot Cave, Thien Canh Son Cave still possesses an irresistible charm and is less crowded, allowing visitors to have the most complete experience. It's like stepping into a fantasy world where tourists can immerse themselves in their own imaginations about stone flowers, baby elephants, or adorable dwarfs.

Outside the cave, visitors can admire the poetic natural scenery of Bai Tu Long Bay, enjoying the fresh and cool air of the bay. Additionally, spending time relaxing on the beautiful white sandy beach at the foot of the mountain will be a wonderful experience before continuing on to the next adventures.