Thien Cung Cave is one of the most beautiful and famous caves in Ha Long Bay. Located on Dau Go Island, the cave impresses with its vast and magnificent space, along with a system of stalactites and stalagmites formed over millions of years. Inside the cave, light shines on the strangely shaped rock formations, evoking mythical stories. With its mystical and unique beauty, Thien Cung Cave is an attractive destination, drawing numerous domestic and international tourists when visiting Ha Long Bay.