Savannah Safari IPA (try it, badge) you can only earn from one of the trolley companies during thier tour.  I took Cadettes/Seniors and the walking part of the tour that is for the IPA is completely ridiculous.  The booklet is geared toward Brownies with questions like - who is riding the statue of the horse?  ________________    
 
My girls were so bored and many of the things we walked to we already saw on the trolley tour.  There was nothing learned for my girls.  I have several going toward Gold and I wouldn't let them use that IPA for thier Leadership Award since it took them about 10 min to complete the whole thing. 
 
As far as I know, the requirements are not online anywhere.
 
 
At the Tybee Marine Science Center you can also earn the Coastel Georgia IPA (badge/try it).  This one was a little better - they walk to the marsh was cool and the info on the beach was good, but again, I felt like it could have been more since we were earning a whole IPA.  But the IPA is really cute with a sea turtle on it.  :-)  
You can buy these through the mail or stop in at First Headquarters (they don't sell them at the Birthplace).  When I recevied my reservation info from TMCC, there was a sheet included for this.
 
 
There are a few others that the Georgia Council offers as Council's Owns.
You can find out about them here - 
http://www.girlscouting.org/FHQ.asp?ArticleID=64