Presque Isle weed beds

I am not from Erie so want to do some pre-trip education before coming this spring.  I am looking for someone that is very knowledgeable about Presque Isle Bay. 
 
I fish from a float tube so I can't scout the bay effectively.  I am looking for help marking a map with the location of weed beds.  I like to focus on the outer edges of the beds.  Is there anyone who will help me mark a map or mark up a google earth image showing where the weed beds are located. 
 
Thanks a ton...in advance.