Son Doong Cave is the largest natural cave in the world. In Son Doong cave, the largest cave is over 6 km long, 150m high and 200m wide. As a result, Son Doong passes Deer Cave, Gunnung Mulu National Park in Malaysia to become the largest cave in the world. This cave has a beautiful stalactite system with images of "Eden" in the cave, or a collection of "pearls" thousands of years old.


Quang Binh is home to the World Heritage Phong Nha-Ke Bang National Park and is also known as the “Kingdom of Caves" with more than 300 different large and small caves, including Son Doong Cave, En Cave, Thien Duong Cave, Phong Nha Cave, Tien Son Cave, Mooc Spring, Zipline, Chay River - Dark Cave, System of Stunted Caves in Le Thuy, etc.


Da Nang city lies in the Midlands of Viet Nam, from which Ha Noi capital in the north and Ho Chi Minh city in the south are almost equally spaced. Da Nang is also the central point connecting three UNESCO World Heritage sites: Hue Citadel, Hoi An ancient town, and My Son Sanctuary.


The fresh and clean air of such Highland regions like Da Lat of Vietnam is in sharp contrast to the busy cities and their traffic. Da Lat offers a great natural environment in the surrounding areas, brilliant cuisine using the fruit and vegetables grown in this fertile region as well as a flavour of history and religion.