It's basically impossible to find areas of quiet on the peninsula, if you want genuine quiet. Even the parks along Skyline have a consistent level of noise from planes overhead.
Genuine quiet is really tough. Even in the middle of Yosemite you can hear planes going by at 25 or 30 thousand feet. Planes flying Denver to San Francisco are already on an approach track when they fly over Yosemite.
Yeah, I think you're probably right. You'd think you can get some quiet by standing in the middle of a hundred acres of park, separated from the outside world by a quarter mile of grassy hills and fifty-feet tall glass walls, and you'll get some quiet for a bit…but then a plane will fly overhead every ten minutes or so on a final approach to SFO from LAX :( So I call a place "quiet" if I would call it that for more than a minute at a time.
