The key word is Heights.
I enthusiastically climbed to the top to take in the views.
Unfortunately, the homes hog all the views. You can't see much from the street up there. (Side note: this style of house seems to be unique to Diamond Heights. I can't say I've seen this style anywhere else in town. So maybe these houses are the diamonds - rare and vintage.)
The one cool feature a pedestrian can enjoy is Glen Canyon along Berkeley Street. If you recall, I walked down inside and up the other side of the canyon on my recent Miraloma walk.
This canyon has a way of making you forget you are in San Francisco.
But then you find things nearby to remind you that you are still in this crazy, beautiful city.