Out of state visitors: There is no waiting period once you obtain your marriage license.
Florida Residents: There is a three day waiting period once you obtain your marriage license.
Click on the following links for more information on obtaining your marriage license.
Okaloosa County Clerk of Court www.clerkofcourts.cc/pages/marriage_licenses.htm
Walton County Clerk of Court http://clerkofcourts.co.walton.fl.us/marriage_licenses.html