Replying to @davidbaron @EricaJoy
Officially Kepler is only 60km. Google Maps says the walk from Te Anau to the Control Gates is another 8-9km, but I'm not sure where the other 10km came from. doc.govt.nz/parks-and-recrea…

Kepler Track

From late October to April, walk past the beech-forested shorelines of lakes Te Anau and Manapouri, to tussock-covered ridgelines with spectacular alpine vistas. From May to late October, it can be...

doc.govt.nz
2
Probably another few km of side trips and then maybe 8km of GPS error? Calculating distances from a sequence of points is hard because you have to decide what is error to smooth away and what's real. Anyway, probably still longer than the 60km Yosemite hike (but different GPS).
Replying to @davidbaron @EricaJoy @rocallahan
Maybe flickr.com/photos/dbaron/alb… is also a good answer for the "why". (Day 2, with all the photos of the mountain peaks poking above the clouds, was the highlight.) (I was actually expecting my 5-day Yosemite hike to be longer, but it wasn't.)