I live near the very end of the Arkansas River navigation system and at least two or three times a year find a navigation buoy that got loose and drifted up into shallow water.These are the big old can buoys made of steel and weigh a bunch.I always call the Coast Guard HQ in Pine Bluff and they always come and get them.Surprisingly for these times I usually get a thank you from them That,s a nice float you have there.