This Naiad fin is pressed onto its splined shaft, and stays put without fastenings. Removing it requires special equipment, though. Note the narrow winglet at the tip of the fin to make it more efficient.
The Bahamas Billfish Championship will return to form with four exciting tournaments this spring. And the BBC also brings you a new pair of marlin contests in Cuba—the Gamefish Grande Tournament. Check out the details here. ▶