This cache by a statue named Angel of Grief. Or is it a statue? In the Doctor Who episode Blink, what appear to be statues of angels are actually hostile aliens--immovable as stone as long as you look at them; look away for an instant and they'll get you!
The most convenient parking is a lot on Quarry Road; You have to pay for parking but it's free on weekends. The Stanford Campus is also very bike-accessible.
This cache is a "regeneration" of archived cache GC20C7A.
Slight hint: hidden in plain sight. Decrypt below for more specific hint! (If it's not in plain sight, and you need really long arms to reach it, then the cache has probably fallen out of the place it's supposed to be in).
Be sure to check out the nearby Stanford Mausoleum and the Cactus Garden.