Caves are stunning creations. Rock formations are spectacular. Rock formations in the middle of bodies of water can be even more stunning. This is Halong Bay, also called the “descending dragon bay”. Halong Bay is a series of 1969 islands surrounded by over 1500 square kilometers of water. Its huge. No, its enormous! covered in islands, caves, holes, nooks and crannies everywhere. Because of its sheer size and beauty it is a very popular tourist attraction and has been commercialized quite a bit, so be advised if you do come see it, there will be lots of people to see it, whether at the low season or the high season.