A surfboard includes a body, a fin, a chamber disposed in the body, and a fastener. The fin is receivable in the chamber and projects from the body at a cant when received in the chamber. The chamber and the fastener may be components of a fin box disposed on the body of the surfboard. The chamber is configured so that the fin is adjustable in a variety of cants. The chamber may be configured to allow a foot of the fin to pivot within the chamber. When the fin is positioned in a desired cant, the fastener secures the fin in the chamber at the desired cant. To adjust the cant, the fastener is actuated to release the fin, the fin is repositioned at another cant, and the fastener is actuated to secure the fin at the new desired cant. This adjustment of the fin may be repeated any number of times.