Along the northernmost coast of Vietnam, this dramatic UNESCO World Heritage archipelago of some 2,000 limestone islands (whose name is sometimes spelled Ha Long) has become one of the world's iconic travel destinations and bucket-list musts. And so naturally a cruise industry has developed which allows visitors to float around this spectacular environment and explore its waterways, caves, floating villages, and other features and sites (including Vietnam's largest pagoda). What is it like to experience this painterly, nearly otherworldly... keep reading