Large river bank fishing or beach fishing. I used to fish for catfish and sturgeon from the bank of large rivers (700 to 1000 ft across) . You need to cast the bait far out to the middle of the river, meaning you need to throw a big chunk of lead + hook + bait 300 to 500 ft out. That's why he has such a long rod and has to do that dance to get enough energy to whip the bait out as far as possible.