SBUX caches seem to be a tradition along the east coast and maybe the whole country. I’m really not sure about that since I haven’t traveled that far.
At this location you are looking for a small round plastic container. It contains a log and small pencil.
As with most SBUX caches you have to be extremely stealthy. The cache is very easy to find, however not being seen retrieving it may be a tough task. That is the reason for the high difficulty rate.