Groupon - Brevard Zoo's Zipline (Not the zoo)

Today’s Groupon: for $20, you get admission to the Treetop Challenge, a 90-minute zipline obstacle course that's one of the Treetop Trek Aerial Adventures located at Brevard Zoo in Melbourne (a $40 value). Treetop Trek tickets do not include or require zoo admission.
HOW TO GET IT:

• You will want to go HERE to sign in
• Choose Orlando as your city if you don't see it - it is a NATIONWIDE deal
• Then as a bonus, when you refer your friends to Groupon, you get a $10 voucher ...when you go HERE (but you clearly don't have to)  
• After you make your buy, you are given a $2 credit towards your next Groupon! 
• Your Groupon wont expire until Nov 8, 2011