There are others on this board who have more experience with those buses than do I (and apparently one of them posted a response while I was typing mine!
) but I'd be inclined to say that it depends on the driver (which, unfortunately, makes it hard to plan on!).
One other thing to consider is whether or not they've completed the planned construction along the GP Road (I just took a quick look at the NPS/yose website and didn't see anything about this)...Anybody else know about this?
As a plan B, you could take the Four Mile Trail from the Valley up to GP and then either hike back to the Mono TH or take the Panorama Trail down to the Illouette Basin and follow the trail along the river back to where it hooks up with the Mono Meadow Trail. This has the added advantage of being able to start as early as you want (it's been many years since I last road one of those tour buses but my recollection is that they don't start running until about 9am).
You could also park at Tunnel View and take the Pohono Trail towards GP. I'd have to check a map to remind myself which exit point (either McGurk Meadow or Taft Point) would get you closest to the Mono Meadow TH but I think this would be a significantly longer trek than going up the Four Mile Trail.
Edited 2 time(s). Last edit at 11/08/2023 11:56AM by DavidK42.