Cat Ba is a strikingly beautiful island located in the northern part of Vietnam, within the famed Halong Bay. Known for its breathtaking landscapes, Cat Ba is largely dominated by the vibrant Cat Ba National Park, a haven for nature lovers with its dense tropical jungles and diverse wildlife. The island showcases an enchanting mix of towering limestone karsts, serene beaches, and azure waters, offering ample opportunities for hiking, rock-climbing, and boat tours. Cat Ba also boasts of a lively town filled with street markets, seafood restaurants, and bars. Its unique ecosystem, including the highly endangered golden-headed langur, has earned it a UNESCO recognition as a biosphere reserve.