Here it is a map showing the borders of San Francisco. And here’s the view of two East Bay peninsulas looking south from the Bay Bridge.
See? The nearer peninsula, the one with the big white crane, is part of the City of Oakland. It shows respect for the Alameda / San Francisco county border by stopping exactly where it should. But the farther one, part of the City of Alameda, simply juts all the way into San Francisco County.
How wude!

Here’s the borderline:

Anyway, it’s our land but it’s in the East Bay.
Somehow.
All the deets:
“Looking eastward from Twin Peaks, San Francisco. That’s Mission Bay / Dogpatch in the foreground with Oakland in the background.
Here’s your first choice. Does this line represent the border betwixt the counties?

Click to expand
And here’s your second, with the westernmost portion of Alameda in the City and County of San Francisco:

And here’s your third choice, right down the channel:

And here’s your answer, it’s photo #2, for some odd reason.
Now, you Better Know the Bay Area.
Thanks for playing!”