+Surfboard fins are critical foils attached to the underside of a [surfboard](/wiki/surfboard), providing stability, drive, and control. They act much like a boat's keel, enabling a surfer to steer, hold a line on a wave, and generate speed during [surfing](/wiki/surfing). Diverse fin designs and configurations significantly impact a board's maneuverability and overall performance.
+## See also
+- [Fin Box](/wiki/fin_box)
+- [Board Design](/wiki/board_design)
+- [Hydrodynamics](/wiki/hydrodynamics)