Supertwin Lungfish January 29, 2018 by craigtonks in Photos and tagged Australia, Crankin Surf, Crankin Surfboards, Lungfish, Supertwin, Surf, Surfboards, Surfing, Twin Fin A selecetion of Supertwin Lungfish Models. A mixture of Future Fins and FCS Fusion fin systems. A fun board to ride. 5’10 x 21 5’5 x 19 Share this:TwitterFacebookLike this:Like Loading... Related