I recommend 'A' Mountain Cache in Tempe. It took me a while to find but you will get some good views of the area from there.
http://www.geocaching.com/seek/cache_detai...55-cac658653a93
I wanted to let you guys know that this is pretty awsome event you guys are doing. I just started geocaching but this sounds like an awsome game. How long do you guys think it will go for?