Jul 6, 2018 - 7:30 PM
Plenty of options without making your visit an endurance test!
Consider northeast Switzerland too especially if you're getting a Swiss Travel Pass. But there are many shorter options within the ZVV (greater Zurich) fare area. T
The short train ride to Uetliberg suggested by Lucas is a great trip. And some tram rides around Zurich suburbs are very pleasant too.
Enjoy your travels and, as always, PPPPP: prior planning prevents poor performance!