Cat Ba Island is the largest of the 366 islands spanning 260 square kilometers that comprise the Cat Ba Archipelago, which makes up the southeastern edge of Ha Long Bay in northern Vietnam. Cat Ba Island means "Women's Island" (Cat meaning sandy and Ba meaning women). The island has a surface area of 285 km² and maintains the dramatic and rugged features of Ha Long Bay while having the advantage of being more accessible than its famous neighbor. This island belongs to Haiphong city - the most famous city in North of Vietnam.