The Science and Technology Museum is located at the entrance of Sun Island, next to the Polar Museum. If you take a taxi from the railway station, it will be within half an hour without traffic jams, and if you take a taxi from Central Street, it will be more than ten minutes! There are no hotels near Sun Island. You can stay in hotels near Central Street. There are some express hotels on Tongjiang Street (next to Central Street), all of which cost more than 1 yuan. Take a bus to the highway bridge at the gate of Parkson Shopping Mall. When you get to the highway bridge, take those blue minibuses to Jiangbei, and you can stop at Sun Island. If you live in the central street, it is recommended to take a taxi to Sun Island, which costs more than ten yuan. You can't take a boat this season. The Science and Technology Museum and Sun Island are enough for one day

Supplementary answer to the question: The World of Ice and Snow has not yet opened, and it is estimated that it will not open until late December. You can go to the Polar Museum next to the Science and Technology Museum, which is a good choice if you like animals. You can also go skiing. It's not very cold to go skiing now. It's all artificial snow, and the danger is relatively small. You can recommend that Harbin Mingdu Ski Resort is located at No.215, Haping Road, Power Zone. This place is a little far away, but the conditions are not bad. As for food, I don't know what kind of things you like. Hotels are everywhere, and personal tastes are different.