Write a passage about a wonder of Vietnam that you are most interested In. Use the following questions as clues. - What is the wonder you like? - Where is it? - What are the features of that wonder? -What makes you impressed most? - Why do you find it interesting? - How do you feel when you visit it?

Phong Nha Ke Bang National Park is located in Quang Binh province. This is a place recognized by Unesco as a world natural heritage based on geological criteria in 2003. Moreover, in 2005, this place was recognized by Unesco as a world natural heritage in terms of ecology. Phong Nha Ke Bang is known as the cave kingdom with more than 3,000 large and small caves. Phong Nha cave is one of the three largest cave systems of Phong Nha- Ke Bang. Coming to Phong Nha Ke Bang, you will admire the most beautiful underground rivers, highest caves, sand dunes, coral reefs. It can be said that Phong Nha Ke Bang is the most attractive and charming tourist destination.