Another downtown Berkeley cache, since they seem to be popular and it's close to my office. A new container for us -- may require some geosense.
Be aware that satellite signals may bounce off buildings, confusing your GPSr. The averages from multiple readings over several days and times were very consistent, so let the GPSr settle down if it doesn't make sense. GZ is not in the street nor is it inside any building or behind any gate or fence.
Expect muggles from any direction, use all stealth skills. And replace it exactly as you found it.