Its pretty simple really, how deep is your boat and how shallow is the water at what distance off the shore. Once you've determined these things you can choose the rode necessary to anchor in that depth, being certain you don't swing into water shallower than your boat.
I have a special anchor for securing a line to a tree, should I need to Med-moor.
I have a special anchor for securing a line to a tree, should I need to Med-moor.