Seeking travel arrangements for Taipei Alishan Riyue Lake Hsinchu (Kaohsiung)

Maybe you can also consider entering from Taoyuan Airport, going up to Taipei, off to Hsinchu, and then to Alishan.

Since Kaohsiung is not available, if you have enough time, just go there and spend a day. You can also go from Kaohsiung.

If it’s not enough, it will take about the same amount of time to return to Taoyuan Airport.

Because Chiayi is not big: it takes half an hour to get from Chiayi to Kaohsiung Zuoying, and one hour to Taoyuan Station, and you have to change trains.

So, you can enter and exit from any side.

The high-speed rail timetable is as shown below for reference.