Patent ID: 8465334

Claim:
A fin system comprising: a fin box securable to a watercraft and a fin, the fin box including: a receiving portion having opposing first and second fin box side walls and an opening; and at least one protrusion extending from the first fin box side wall; and a fin including: a body having a leading edge, a trailing edge, a first side face and a second side face in opposition to the first side face, the first and second side faces extending between the leading and trailing edges; and a base mounting portion having a first side having a at least one slot and an opposing second side, wherein the base mounting portion is insertable into the receiving portion in a first position in which the at least one protrusion is located adjacent to the at least one slot and the body is angularly inclined relative to a plane passing across the opening of the receiving portion, and wherein the body is pivotable to a second position in which the at least one protrusion is located in the at least one slot and the body is generally perpendicular to the plane passing across the opening of the receiving portion.