Stretching along the eastern coast of Cat Ba Island, Lan Ha Bay is famed for its dramatic limestone karsts rising from calm green waters and its more tranquil atmosphere compared to nearby Ha Long Bay. The bay contains hundreds of small islands, secluded lagoons, and floating fishing communities that are best explored by boat or kayak. Overnight cruises drift between hidden coves and quiet anchorages, while visitors can swim, paddle through sea caves, or simply enjoy the ever-changing light across the karst landscape. Combining spectacular scenery with a slower pace, Lan Ha Bay is one of northern Vietnam’s most beautiful coastal destinations.