It is about 2.9 kilometers from the window of Beihai Ocean to RT Mart. According to the relevant public information, it is suggested to take the 19 bus from the window of Beihai Ocean to RT Mart, and the whole journey is about 2.9 kilometers. From the dormitory area of Beihai Marine Environmental Monitoring Center Station, walk about 1. 1 km, arrive at Xinli Shopping Plaza Station, take bus 19, and arrive at RT Mart Station after five stops (you can also take bus 13.