Set out on an amazing full-day excursion to the breathtaking Halong Bay, a UNESCO World Heritage site known for its emerald seas and thousands of tall limestone islands with rainforests perched above them. See vistas of Vietnam's stunning countryside as you embark on your journey with a beautiful drive from Hanoi. Once there, spend a day of sightseeing and leisure on a contemporary cruise ship or a classic junk boat. You'll cruise around the serene waters of the bay all day long, taking in the stunning karst formations. A visit to the captivating Sung Sot (Surprise) Cave, one of Halong Bay's biggest and most exquisite caverns, is one of the trip's highlights. In addition, you can have a cool dip in the bay's crystal-clear waters or go kayaking around the islands.