Unforgettable experiences are everywhere in Vietnam. There’s the sublime: gazing over a surreal seascape of limestone islands from the deck of a Chinese junk in Halong Bay. The ridiculous: taking 10 minutes just to cross the street through a tsunami of motorbikes in Hanoi. The inspirational: exploring the world’s most spectacular cave systems in Phong Nha-Ke Bang National Park. see moresee less