In addition to water-based activities such as swimming, kayaking, snorkeling, scuba diving, boat rowing, climbing is a popular activity included in itineraries of almost all cruises in Halong Bay. All visits to a major cave in the Bay (Thien Canh Son Cave, Dau Go Grotto, Surprise Cave, Titov Island) involve climbing of different intensity.

After climbing 100- 420 stone steps to the top, visitors will descend into the core part of the cave and enjoy the amazing formation of karst.