I was thinking the other day...dangerous I know!

Our family has a 1/4 scre pond with steep banks (1:1)on all but the side across the dam. This side is unsafe to stand on no matter what the water level is. Therefore I have been using a rake to turnover the muck from a kayak once a month or so.

My idea is to instead tie a rope onto something and drag it across the pond bottom from the shore. What would work well? needs to be heavy and a couple feet wide. I may try a cinder block or 2 just to see how much work it would be to pull something along.

Also does this sound like it would aerate and mix the muck as well (or at all) like raking does?