This was previously posted by Speardiver member Sames on another thread. I hope you don't mind me copying it here so others will read the concerns when diving Beaver Lake.
Don
Quoted.
''I will say, for some reason Beaver Lake claims many lives each year. For us freedivers, the biggest concerns for me are getting snagged by the standing timber that is all over the place under the surface. It acts like petrified wood and the branches are sharp and have zero give- if it gets ahold of your suit it isn't going to let go easily. Add to that the murky water and it can be very hazardous.
I don't know the exact circumstances of course, but where he was found there is a lot of standing timber in that water, anywhere from surface level to 40 feet or so''.