AP18 is without a doubt the largest killer whale Iâve ever personally encountered. Itâs difficult to get an accurate length without actually measuring him, of course, but if I had to make an estimate, Iâd say heâs easily 25 feet long, if not a little more. He has a huge dorsal fin that makes him pretty unmistakable; it wobbles and is curved ever so slightly to the right.Â










