Curious if there are any interesting diversions or points of interests along the train route between Zurich airport and Appenzell? Ideally things that would be 1-2hrs tops. Thanks!
There is a museum in Urnasch that may be worth a visit:
Appenzeller Brauchtumsmuseum Urnäsch
We have not been there but it looks interesting if you want to learn about the area traditions/customs.
If that doesn't consume enough time, there is a metzgerei and a gelataria close to the Urnasch bahnoff.
Jay
The Swiss Family Fun website has many interesting ideas near Zurich: https://swissfamilyfun.com/destinations/zurich-eastern-switzerland-regional-guide/ and Appenzell https://swissfamilyfun.com/destinations/appenzell/.
Also, St. Gallen has a UNESCO World Heritage sight library that is on my want-to-see it list for my trip next month! https://www.stiftsbezirk.ch/en/stiftsbibliothek