We took the big guys on a swamp tour while we were in New Orleans. Basically it involved getting on a (relatively) small metal boat and cruising around looking for alligators, which was no problem finding.
This guy was probably 10 feet long and right next to us.
To get them to jump, the guide puts a hot dog or marshmallow on a stick and they jump up. I am bummed I cut this guys head out of the picture.