Cat Ba is the district town of Cat Hai district, Hai Phong city, Vietnam. Cat Ba town is located in the southeast of Cat Ba island, overlooking Lan Ha Bay.Cat Ba town also manages many small offshore islands such as Quai Xanh, Sen, Cat Dua, Nep, Dut, Cong Doi, Beo, Cat, Mat, Thoi Nhu, Stone Bang, Cat Ba island, Guoc island, Jackfruit, Pen islet, Islet, castor island, Sailtail island, Stone Prize, Water Shuttle, Dau Dau Island, Bare Island, Prison Island Dragon, Hon Von Dragon, Pair Ba Di Islet, Bu Do Islet, Hang Trong Islet, Mong Rong Islet, Dragon Tail Islet, Chicken Islet, and Candle Islet.