A quick-release, anti-fouling anchor that can be quickly and surely set in either of two positions, 180.degree. apart comprising a shank, with an enlarged end portion containing a closed loop cam-like opening, two flukes shaped like truncated triangles, stocks or anti-roll bars extending at 90.degree. angles from and attached to the flukes and joining them together so as to pass through the cut out section, two support rods joining the flukes and passing through the cut out section, two support rings are attached to the base of each fluke through which the rods pass, the rods and cam surface being in such relationship that a force exerted on the shank varies locks or unlocks the angle of the flukes according to the desired anchoring mode. Two obtuse cover angled plates mounted on each circular ring to act as trippings palms which position the flukes to dig into the bottom. A arcuate anti-fouling rod located on the shank, protects the mechanism from engagement by marine vegetation from above and two anti-fouling semi-circular rings mounted outwardly from the support rings protect either side of the mechanism from engagement with marine vegetation.
