1. Surprise Cave, also known as Hang Sung Sot, is one of the largest and most impressive caves in Halong Bay, Vietnam. It is located on Bo Hon Island and is a popular tourist attraction due to its stunning stalactites and stalagmites formations. The cave is divided into two main chambers, with the first chamber featuring various rock formations resembling animals and the second chamber known as the "Royal Court" due to its grandeur and size.
2. Surprise Cave is open daily from 8:00 am to 5:00 pm. For more information, you can contact the Halong Bay Management Board at +84 203 384 4786.
3. To visit Surprise Cave, you will need to book a tour through a cruise company operating in Halong Bay. The entrance fee to the cave is typically included in the tour package. The transportation to the cave is usually by boat, as part of the cruise itinerary. Make sure to check with your tour operator for specific details on ticket prices and transportation arrangements.



