Ha Long Bay

With its aqua-green water and cluster of limestone rocky outcrops rising from the water like sea dragons, Ha Long Bay resembles a scene from a fantasy story. Located about 130 km (80 miles) east of Hanoi in northern Vietnam, this otherworldly bay features more than 2,000 jungle-covered islands pitted with intriguing caves, grottoes, sinkholes and lakes. Many of the islands have been sculpted over the centuries by natural processes into fantastic formations.