(TITC) - Recently, Hai Au Aviation Joint Stock Company of Thien Minh Group has officially launched seaplane service of sightseeing Ha Long Bay (Quang Ninh Province). With two first Cessna Grand Caravan EX seaplanes in Viet Nam, visitors will have the opportunity to experience the flight from Ha Noi to Ha Long Bay and also admire Ha Long Bay from an altitude of 150 - 3,000m.