Luon Cave is situated on Bo Hon Island in Halong Bay. What makes Luon Cave unique is that it is a water cave, meaning you can only access it by boat. The entrance to the cave is a narrow archway, and once inside, you'll find a tranquil lagoon surrounded by towering limestone cliffs. Visitors often take a boat ride through the cave to enjoy the serene atmosphere and appreciate the breathtaking scenery. Additionally, kayaking is a popular activity in Luon Cave, allowing visitors to paddle through the cave and explore the peaceful lagoon on their own. If you plan to visit Halong Bay, Luon Cave is typically included in many cruise itineraries, and it's a great opportunity to experience the natural wonders of the area. Always check the latest information and tour options, as conditions may change over time.