In late December, I went to Taiwan alone for 9 days and 8 nights, and stayed in Hualien for 2 nights.

Yes, you can also live in Taipei.

Upstairs provides a one-day bus pass. Hualien carpooling for a one-day tour is very easy. Each hotel has cooperative operators who charge by person. Use a 9-seater commercial vehicle to pick up people from the hotel for a one-day tour of scenic spots. You can also refer to it, ask the hotel directly, Ctrip should also sell it

You can rent bicycles in Hualien, but you can't go to most scenic spots. Things like Taroko and Qingshui Cliff are far away from the urban area, and they are all mountain roads that generally do not have the physical strength to ride. There are two routes at the railway station, one to Taroko and the other to Huadong Rift Valley. It is just right to take one every day. The line is from Taiwan Haoxing Company. You can’t post the link here. You can check it yourself on Baidu. Generally, the bus departing at around 9:00 in the morning is better. The bus is in the form of public transportation. If you don't catch up, you can wait for the next shift, so it's better to start early.