This is stop number #10 of the Alabama State Park Geocaching Challenge events. Desoto State Park on October 27.
You can read more at: http://coord.info/GC3PBN7 on geocaching.com.
There will also be an event on Friday night to kick things off in a fun way, and... a Geocaching 101 class on Saturday at 2:00 PM. Links to those events are on the webpage link above.
If you plan to attend, please RSVP directly on the webpages on geocaching.com for all events you plan to attend.