Perimish

I just want to know how to begin. I just made my account on geocaching.com and I have an interest in this event. I have no interest in taking caches myself (I have participated in geocaching through scouts I understand the etiquette) although I understand some people may not be so inclined and will take the caches. This is a shame but only a bit more likely than someone stumbling upon one upon dumb luck and taking one. Anyway if anyone could tell me when and how to begin it would be much appreciated.