
37. Halong Bay, Vietnam, is great for those who love the sea.
Those who love blue and green waters should consider a relaxing trip to Halong Bay in Vietnam. The emerald waters are world-famous, and their picturesque beauty is unparalleled to anything else you will ever see. You can spend some of your days out on the sea or take a junk boat tour or sea kayak expedition to nearby islets. You can also take the time to explore the various limestone islands and nearby rainforests. The area is a UNESCO World Heritage Site, which means it is home to many plants and animals (via Travel and Leisure).