Many foreigners usually go to Taipei or New Taipei City or Hualien county when they visit Taiwan.
However if they have more free time, I would like to bring them going to Qingjing Farm in central taiwan high mountain area.
http://www.ntbus.com.tw/en-cjfm.html
Taichung - Qingjing farm
http://www.ntbus.com.tw/cj-m.html
If u have more time, why not go to higher area(Hehuan Mountain)
If you get high speed railway to Taichung, please go to exit 5 and get a number from the Ntbus counter first
You can buy the tour ticket on site or the easy card or the iPass card in the convenient store remember saving money in advance
This bus only needs to take about 2.5 hours to Qingjing Farm. Inside the bus is great and clean with the air conditioner. And you can enjoy the nap time or just watch the scenery with relaxation.
I suggest you should take the walk from the bottom Qingjing Farm and leave from the upper area. One is good for yours legs and the other is to avoid the full bus when ready to leave.
You can get some snack in the convenience store at Qingjing area as well and go to the small garden having the lunch(need to buy the ticket https://www.cingjing.gov.tw/en/mien/ins.php?index_id=26)
Taiwan has very many beautiful views and points, not just only east mountain and coast line but also rich is height mountain area.
welcome to come to Taiwan if u have the vacation enjoy the culture, food, scenery and it’s history. And maybe I could be your tour guide when you are planning to visit Taiwan.