Always looked like a cool way to catfish. More of a southern thing though. You go out into shallow back waters with something like empty bleach bottles with short lines with hooks tied to them. Bait up the hooks, set a group of "Jugs" floating loose in the water, and wait. The jugs will bob around telling you you've got something. then you just boat over, pick up the jug, pull in the line with the fish on it! Simple.... The guy has his little daughter on the kayak behind him.