The Challenge
This is a so-called challenge cache for which you need to perform a particular task prior to being allowed to log a find.
Groundspeak Guidelines state:
A challenge cache is a variation of a puzzle cache. This will typically require the cacher to meet a reasonable Geocaching-, Waymarking- or Wherigo-related qualification.
This challenge simply requires you to attend and log ten consecutive SA events. That is ten events in a row without missing any.
Rules:
Megas, CITOs and of course regular events all count.
Past events can be used if you've already done ten in a row. (Has anyone already done this?)
You may find other caches in between events.
It would be nice if you could do it without including your own events but if you must you can count them (even if you don't log a "Attended" on your own).
In your 'Found It' logs you need to include the gc codes and the dates of the ten events. You may post a image like mine below if you wish.
Click here for a list of past events for 2014 (Jan-June)
Click here for a list of past events for 2013
Click here for a list of past events for 2012
Click here for a list of past events for 2011
Click here for a list of past events for 2010 - 2009
Click here for a list of past events for 2008 - 2001
Now before you say that it is impossible, I did 13 in a row as shown in the image below! (and it would have been more if not for double-ups at the start and end)

The Puzzle
The cache can be found at:
South (GC3PWHX + GC3PTJV)° (GC42QC9 + GC2N1VK + GC45B7Z - 1).(GC3AVG9 + GC3JYWG + GC3B4X5 + GC3QD8D + GC44RPR + GC3WZB9 + GC22AGH)
East (GC3FXFG + GC3W645 + GC3RYVK + GC442MH)° (GC2YQYV + GC3D0XE).(GC46BEJ + GC2PWBC + GC2T407)
Please rehide the cache well.
Good Luck!