Marker buoy

A marker buoy for marking a selected location on the surface of a body of water having a particular depth at said location, said marker buoy comprising:

• a body portion of buoyant material operative to float said buoy on said water surface, said body portion being free to rotate on said water's surface about an axis substantially parallel to said surface;
• a core portion centrally disposed in said body portion, said core portion having a central hub and opposed sidewalls overextending said hub to define an annular recess about the periphery of said marker buoy, the axis of said hub being substantially coincident with the rotational axis of said body portion;
• an anchor line for winding and unwinding movement within said recess about said hub when one end of said line is fixedly secured to said marker buoy, the other end of said line being free to engage an anchor weight operative to sink in said body of water and to unwind said line until a length of said line corresponding to said particular depth is unwound to anchor said marker buoy;
• and
• a plurality of resilient finger elements each being fixedly mounted at one end to one of said core portion sidewalls and extending across said recess towards the opposite sidewall;
• whereby when said anchor weight is secured to said free end of said line and descends in said water and unwinds said line to anchor said buoy, said line is pulled against said successive finger elements, and after said buoy is anchored, said finger elements prevent said line from further unwinding from said buoy.