Abstract: An anti-fouling anchor for boats, and the like and comprising a shank member having an axially outwardly extending stud member at one end thereof and a transversely extending rod member journalled at the opposite end thereof, a spring urged release rod assembly secured to the transversely extending rod member and releasably engageable with stud member and normally engaged with the stud member for utilization of the anchor in the usual manner for securing the boat in a preselected position in a body of water. Upon accidental lodging of the anchor at the bottom of the body of water, the release rod assembly may be disengaged from the stud member whereby the shank is free to rotation about the longitudinal axis of the transverse rod, thereby permitting the anchor to be "backed away" from the lodged position thereof.