To be honest, I was not a great fan of this trail: the place is not wild enough for me (in fact, not wild at all). On the other hand, this hike might be a nice option for people that stay in Zurich and want to get a glimpse on the main Swiss stereotypes (mountains, lakes, cows, you know). The trail is super easy – no need to climb, and only very little altitude change. Most of the path is even accessible for wheelchairs!
TL;DR
What: a hike next to Lucerne: Rigi Kulm to Rigi Scheidegg cable car station.
Why: great view on three lakes and on the Alps, clean Swiss air (with a scent of cows :D).
How long: 2-3 hours (the hike itself) + 3.5 hours (commute from Zurich and back).
How to get here: train, cable car.
Difficulty: minimal.
Ascent: 243 m.
Descent: 369 m.
How much it costs: ~65 CHF by public transport from Zurich.
