UPDATED – For 2014 coupons for Adventureland park in Altoona, Iowa during the 2014 season the promotion has changed to the following.
$6 OFF in May & September
$4 OFF In June
$3 OFF in July & August
$10 off season passes for Adventureland
$8 OFF in May & September $6 OFF In June $4 OFF in July & August PROMO CODE: GDMCVB2013