This has always been one of my favorite secret spots to go to escape from all the people and noise. Its a very nice, tranquil place that not too many people know about, even if it is surrounded by thousands of people every day. There is a great White Sapote tree from SE Asia there that produces tasty Sapote fruit (custard apple) and there are ferns, jacaranda and some real nice flower beds.
This site is not difficult to get to, but be forewarned, you will be literally surrounded by people while looking for this cache. Its better to go looking for this in the daytime, as it would be very difficult at night, and the residents might not take to kindly to someone poking around with a flashlight! Note, its a small cache about pint sized, in a clear plastic container, so put small stuff in it.
Also, I see that they have renamed this garden as Telepathic Gardens, let me know if you can contact anyone while you are there! Enjoy this little oasis.
*****NOTE, I HAVE CHANGED THE COORDS TO REFLECT THE ONES THAT SEEM TO BE WORKING FOR EVERYONE, I'VE SINCE UPGRADED THE FIRMWARE ON MY GPS, SO IT SHOULD MORE ACCURATELY MARK THE SPOT******