Hang Thủy Cung in Bố Trạch, Quảng Bình, Vietnam, is a spectacular cave located in the middle of Sinh Tồn Valley within Phong Nha – Kẻ Bàng National Park. It is also known as the "Aquarium Cave" due to its crystal-clear blue water resembling an underwater palace. The cave features stunning multicolored stalactites and stalagmites and creates a mythical, labyrinth-like aquatic landscape.

Vietnam is a Southeast Asian country known for its rich history, stunning natural landscapes, vibrant culture, and delicious cuisine. Its population was 99.327.643 in 2022. The capital city, Hanoi, is known for its historic old quarter, colonial architecture, and vibrant street markets.

Hang Chà Lòi is a cave located in Quảng Bình province, Vietnam. This region is renowned for its extensive and impressive cave systems, including the world-famous Sơn Đoòng Cave, which is the largest cave in the world. Quảng Bình is part of the Phong Nha-Kẻ Bàng National Park, a UNESCO World Heritage site known for its stunning karst landscapes, underground rivers, and diverse ecosystems.

Hang Sơn Nữ (Son Nu cave) has just been discovered in Truong Son commune, Quang Ninh district, Quang Binh. The new cave is more than 1.5 km long in the middle of Truong Son forest. During the summer, the water in the cave is not high, people can row boats from the entrance of the cave to the end of the cave approximately an hour.

Hang En, occasionally referred to as En cave in English, is a cave in Phong Nha-Ke Bang National Park, a UNESCO World Heritage Site. Hang En is the third largest cave in the world, after Hang Son Doong in the same national park, and Deer Cave in Malaysia. The cave has its own jungle, waters, beach, and climate. There are three known entrances to Hang En.

Phong Nha Cave (Động Phong Nha) is a UNESCO World Heritage Site located in the Phong NHA-Ke Bang National Park in Bo Trach district, Quang Binh province, Vietnam. The cave is a popular tourist destination known for its stunning natural beauty and unique geological formations.

Tu Lan Cave is a cave system located in Minh Hoa district, Quang Binh province, Vietnam. Tu Lan Cave System is about 70 km North-West of Phong Nha-Ke Bang National Park. The cave system is a UNESCO World Heritage Site.

The Citadel (Thanh co Dong Hoi) in Dong Hoi, Quang Binh province, Vietnam, is a historic fortress that played a significant role in the country's history. The Citadel was built during the Nguyen dynasty in the 19th century and served as a military stronghold to defend the kingdom from invaders.

Bảo tàng Tỉnh Quảng Bình (Quang Binh Museum) is a museum located in the city of Dong Hoi, Quang Binh province, Vietnam. The museum showcases the history and culture of Quang Binh province, from prehistoric times to the present day.

Nui Than Dinh, also known as Than Da Mountain, is a famous tourist attraction located in Quang Binh Province, Vietnam. The mountain is named after the legendary mountain god who, according to local folklore, once lived on the mountain and protected the local people.