Discover two of the most iconic natural wonders of Phong Nha-Kẻ Bàng National Park, a UNESCO World Heritage Site since 2003. Phong Nha Cave, extending 7,729 meters, is one of the world’s longest wet caves, while Paradise Cave, at 31 kilometers, is renowned as the longest dry cave. These awe-inspiring caves define the "Kingdom of Caves" and draw visitors from around the globe. If you’re passionate about cave exploration, join our tour from Dong Hoi to experience these magnificent underground landscapes and make unforgettable memories.