On your Vietnam adventure trip there are many natural areas to visit. There are two UNESCO World Natural Heritage sites, Halong Bay and Phong Nha-Ke Bang National Park.

Halong Bay, which translated means Descending Dragon Bay, is in the Quang Ninh Province and is a popular travel destination. The bay has more than 1900 isles, and most of them are made up of limestone. Many of the islands have caves which can be visited. Two of the bigger islands, Tuan Chau and Cat Ba have permanent...