One of my favorite days fishing, ever, was fishing for spinner sharks in the surf in Louisiana in the spring. We were using heavy spinning and medium bait casting gear, catching spinners and bulls up to 100 lb. One after the other. When I asked people to join, they said "why do you want to catch sharks?" I don't know, because they are big, jump all over the place, and wear out after 10 minutes. I can't imagine on a fly rod, it would be epic.